Justin Ross Harris, 33, looks on at the Cobb County Magistrate Court in Marietta, Georgia July 3, 2014. REUTERS/Kelly Huff

(Reuters) - A Georgia man who faces trial on charges of intentionally leaving his toddler inside a hot car and exchanging nude photos with females as the child was dying, is facing eight new charges of child exploitation.

Justin Ross Harris was indicted Friday on two counts of sexual exploitation and six counts of dissemination of harmful materials for possessing photographs of underage girls performing sexual acts, according to a seven-page indictment from the Cobb County District Attorney's office.

The indictment alleges Harris, 35, shared naked images of himself and printed descriptions of sexual conduct and excitement with three different girls from Jan. 23, 2014 to March 8, 2014.

On Saturday, a spokeswoman from the Cobb County District Attorney's Office said the new charges stem from further analysis of electronic devices in the original case.

Harris, who is in jail awaiting trial, is expected to be arraigned on the new charges, but no court date has been set, the spokeswoman said.

A lawyer for Harris did not immediately respond a request for comment.

Harris' trial is set to begin in April on his 2014 indictment on eight charges of malice and felony murder, as well as child cruelty and a charge related to sexual exploitation for asking a girl to send him lewd photos.

At the time, the indictment said the suburban Atlanta father acted "with malice aforethought" when he placed his 22-month-old son in a car seat and left him in a sport utility vehicle on a day when temperatures exceeded 90 degrees Fahrenheit (32 degrees Celsius).

Prosecutors have argued that Harris deliberately left his son in the car because he wanted to live a child-free life.

The Atlanta Journal Constitution has reported that Ross pleaded not guilty to the first set of charges.

(Reporting by Justin Madden in Chicago; Editing by Alan Crosby)

BAGHDAD (AP) -- It will take many more months to prepare Iraq's still struggling military for a long-anticipated assault on the Islamic State group's biggest stronghold in the country, the city of Mosul, U.S. and Iraqi officials say — and it may not even be possible to retake it this year, despite repeated vows by Prime Minister Haider al-Abadi.

As the U.S. and its allies furiously work to train thousands more troops for the daunting task of retaking Iraq's second largest city, Islamic State group fighters are launching a diversion campaign of bloody suicide attacks in Baghdad and elsewhere. Their aim is to force Iraq's already overburdened security forces to spread even thinner to protect the capital and other cities rather than prepare the Mosul operation.

Iraq's answer to that has been to plan to build a wall around the capital. Meanwhile, the U.S.-led coalition and the Iraqis are struggling to protect pockets of territory that have been recaptured from the extremists to free up forces for Mosul.

"Mosul will be very complicated, it will be a mix of forces and it will be very important to ensure it's well planned," Brett McGurk, President Barack Obama's envoy to the U.S.-led coalition fighting the Islamic State group, said Saturday.

U.S. Army Col. Christopher Garver, a spokesman for the coalition, put it more bluntly. "The forces that are going to conduct that assault into the city, they're not in place yet."

The northern city of Mosul, once home to more than a million people, was the biggest prize captured by the Islamic State group when it swept over much of Iraq's north and west in the summer of 2014 and declared a "caliphate" across those lands and the ones it captured in Syria. While Iraqi forces have clawed back some territory in the past year, retaking Mosul is considered crucial for breaking the jihadis' back in the country. Estimates of the number of IS fighters in Mosul vary from a few thousand to "not more than 10,000," according to the coalition.

The Iraqi military is still struggling to regroup. When Mosul fell to IS, more than a third of the military disintegrated as thousands of soldiers shed their uniforms and dropped their weapons to flee. In the following months, tens of thousands more Iraqi troops were identified as "ghost soldiers" — nonexistent troops whose pay was pocketed by senior commanders.

The U.S.-led coalition began a training program months later in December 2014, but so far only 18,500 soldiers and security forces have been trained in courses which last around seven weeks. Experts question whether such a crash course is adequate preparation. Coalition and Iraqi officials estimate eight to 12 brigades, or an estimated 24,000 to 36,000 troops, will be needed for the operation to capture Mosul.

So far, 2,000 to 3,000 Iraqi troops have been deployed at Makhmour base, the likely staging ground for a Mosul assault, located 40 miles (67 kilometers) southeast of the city.

"We are all trained, qualified and ready for battle. But this force is not enough to retake Mosul," said Iraqi Lt. Col Mohammed al-Wagaa, stationed at Makhmour. "The battle for Mosul is going to take a long time."

Under political pressure to show victory, al-Abadi has repeatedly vowed to "liberate" Mosul this year. But U.S. Lt. Gen. Vincent Stewart, head of the Defense Intelligence Agency, told Congress last month, "I'm not as optimistic."

Stewart said they may be able to begin "isolation operations" around the city, but "securing or taking Mosul is an extensive operation and not something I see in the next year or so."

The Iraqi military's few competent, battle-tested units are scattered, helping hold various front lines against IS in the country's central and western provinces or tied down controlling cities and towns retaken from the militants since other security forces aren't capable.

Iraq's elite counterterrorism forces have units near Tikrit and Baiji in central Iraq and Habaniya in the west. In Ramadi, capital of western Anbar province, a counterterrorism commander said his unit has to remain there because local police forces can't maintain control. He spoke on condition of anonymity because he's not authorized to talk to the press.

"You can't just pick up and leave," Garver said. Without proper forces in place, "Daesh comes back in and seizes terrain that you just spent months taking from them," he said, using an alternative Arabic acronym for IS.

IS has stepped up insurgent-style attacks on Baghdad and other towns removed from front-line fighting. Over the past week a double bombing at a market in Baghdad's Sadr city killed more than 70. The following day a suicide attack at a funeral north of Baghdad killed over 30.

The attacks likely aim at delaying deployment of troops to Makhmour or along the Euphrates River valley for the Mosul assault by forcing the military to move its best forces to protect the capital, said Patrick Martin, an Iraq analyst at the Washington-based Institute for the Study of War.

So far the attacks haven't slowed deployments north. But "if it becomes really bad and multiple attacks like these happen in the near future, (the military's) calculus will probably have to shift," Martin said.

Last month security officials announced work had begun on a 280 kilometer (175 mile) "wall" around Baghdad that would reduce militant attacks inside the city. The Interior Ministry said it would be a combination of tightened checkpoints, trenches and blast walls completely surrounding the Iraqi capital.

The military must also clear IS fighters from more than 100 kilometers (70 miles) of territory to ensure reliable supply lines between Makhmour and Baghdad, said a Baghdad-based military commander overseeing preparations for the Mosul offensive. He spoke on condition of anonymity as he was not authorized to brief the press.

Politics have also complicated planning efforts, as Shiite militias demand that they participate. "No one has the right to prevent us from participating in the liberation of the city of Mosul," Abu Mahdi al-Mohandes, the head of the government-sanctioned Popular Mobilization Forces, mostly made up of Shiite militias, said at a Thursday press conference.

Shiite militia fighters — some of the most effective ground forces against IS — led the fight to retake the mainly Sunni city of Tikrit and were accused of human rights violations in the process. The U.S.-led coalition has repeatedly refused to launch airstrikes in support of Shiite militia operations. In last summer's Anbar offensive, the PMF stood aside and heavy coalition airstrikes proved decisive in Iraqi military gains there.

"We will rely on ourselves in the fighting," Maj. Gen. Bahaa al-Azzawi, chief of police in Mosul's Nineveh province, told the AP, "but if we get support from the coalition this will reduce how long it will take to liberate (Mosul), it will speed up the process and reduce our losses."

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Associated Press writer Salar Salim in Irbil, Iraq contributed to this report.

IDOMENI, Greece (AP) -- At least 18 people drowned off the Turkish coast while trying to reach Greece Sunday, while Macedonian authorities imposed further restrictions on refugees trying to cross the Greek border.

The Turkish coast guard launched a search-and-rescue mission for other migrants believed to be missing from the accident, the state-run Anadolu Agency reported. The coast guard rescued 15 other migrants off the Aegean Sea resort of Didim, it added.

The dead included three children, according to private Dogan news agency.

Meanwhile, Greek police officials said Macedonian authorities are only allowing those from cities they consider to be at war to cross the Idomeni border crossing from Greece. That means people from cities such as Aleppo in Syria, for example, can enter, but those from the Syrian capital of Damascus or the Iraqi capital of Baghdad are being stopped.

The two officials spoke on condition of anonymity because they weren't authorized to speak on the record.

The developments come a day ahead of a summit between the European Union and Turkey to discuss the crisis.

Nearly all refugees and other migrants who enter the EU have been doing so by taking small inflatable dinghies from the Turkish coast to the nearby Greek islands. With thousands of kilometers of coastline, Greece says it cannot staunch the flow unless Turkey stops the boats from leaving its shores.

Athens has also criticized Europe for not sticking to agreements to take in refugees in a relocation scheme that never really got off the ground.

"While Idomeni is closed for refugees and the flows from the islands, from the Turkish shores to the islands, remain, it must be perfectly clear that the immediate start of a reliable process of relocation of refugees from our country to other countries of the European Union is a matter of complete urgency," Prime Minister Alexis Tsipras said Sunday during a speech to his party.

"And this is exactly what we will seek in the summit on Monday. Not just the wording that this is urgent, but that it will begin immediately and with a large number," Tsipras said.

While thousands arrive in Greece's main port of Piraeus from the islands, about 13,000-14,000 people remain stranded in Idomeni, with more arriving each day. The refugee camp has overflowed, with thousands pitching tents among the railway tracks and in adjacent fields.

The rate at which refugees are being allowed to cross had already been reduced to a trickle, with sometimes only a few dozen, or even nobody, being allowed to cross. Greek police said 240 people crossed between 6 a.m. Saturday and the same time Sunday morning.

The camp is beginning to take on a form of semi-permanence, with people realizing they will be spending at the very least several days in the fields. As morning broke, women swept the earth outside their tents with makeshift brooms made of twigs and leaves. Men stomped on branches pulled off trees nearby to use as firewood for small campfires to boil tea and cook.

Throughout Sunday morning, dozens of local Greeks arrived in cars packed with clothes and food donations to distribute to the refugees. Many were mobbed as they arrived at the first tents, with men, women and children scrambling to receive whatever handouts they could.

The sheer numbers have overwhelmed Greek authorities. Massive queues of hundreds of people form from early in the morning, with people waiting for hours for a lunch-time sandwich.

While Greek officials have tried to discourage more people from arriving, and no longer allow buses to drive to the Idomeni border, hundreds continue to arrive each day, walking more than 15 kilometers (10 miles) from a nearby gas station where the United Nations refugee agency has set up large tents.

"We have been here five days, or six. Who remembers the days anymore," said Narjes al Shalaby, 27, from Damascus in Syria, travelling with her mother and two daughters, 5-year-old Maria and 10-year-old Bara'a. Her husband and third daughter are already in Germany.

"All we do here is sleep, wake up, sleep. We get hungry, we wait in the queue for two hours for a sandwich, we come back, we sleep some more," said Narjes, who worries about her daughters.

"She's grown up sooner that she should have," she says of Maria, who is sleeping in the back of the family's small tent. "She's aged."

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Suzan Fraser in Ankara and Costas Kantouris in Thessaloniki contributed.