The two men arrested following the deadly shooting at a Quebec City mosque Sunday night are Alexandre Bissonnette and Mohamed Khadir, Radio-Canada has learned.
Sources told CBC's French-language service the identities of the two men on Monday morning.
Six men died in the shooting during evening prayers at the Centre Culturel Islamique de Québec (Islamic cultural centre of Quebec). Nineteen people were also wounded.
Police refuse to reveal any information about the men other than the fact they are in their late 20s or early 30s.
Police also said it's too early to know the motive, what charges may be laid or when they will appear in court.
Premier Philippe Couillard has described the shooting as a "murderous act directed at a specific community."
Quebec provincial police Sgt. Christine Coulombe said the men who were killed ranged in age from 35 to 70.
Five people remained in critical condition in hospital, including three who are in intensive care, on Monday morning. Another 13 people have been released, according to a hospital spokesperson.
Thirty-nine people escaped the mosque without injuries.
An act of terrorism
While police aren't yet calling this an act of terrorism, Couillard said the shooting should be treated as such.
"It's a murderous act directed at a specific community," he said at a news conference.
"I think the majority of citizens, not just in Quebec but elsewhere, would describe it that way."
Couillard also shared a message of solidarity with Quebec's Muslim community.
"We are with you. You are at home. And you are welcome at home," he said.
Quebec Premier Philippe Couillard speaks to Muslim community0:17
Prime Minister Justin Trudeau described the shooting as a "terrorist attack on Muslims in a centre of worship and refuge."
"Muslim-Canadians are an important part of our national fabric, and these senseless acts have no place in our communities, cities and country," said Trudeau in a statement.
Attack on the ground floor
Police say prayers were underway at the mosque when the shooting began just before 8 p.m.
Men were praying on the ground floor of the building, while women and children were upstairs.
Quebec City Police deployed 2,000 officers once they realized the magnitude of the event, said Insp. Denis Turcotte.
By 10:40 p.m., police said the situation was under control.
"The building is secure and the occupants evacuated. The investigation continues," tweeted Quebec City police, who are working with the RCMP and provincial police.
Connection to Laval University?
One of the two men was arrested not far from the scene of the shooting, while the other was arrested near l'île d'Orléans, five kilometres from downtown Quebec City, following a police chase of the SUV he was driving.
Radio-Canada reported a gun was found inside the SUV.
A source close to the investigation told Radio-Canada police are investigating whether the two men attended Laval University, also in Quebec City.
Executive vice rector Éric Bauce would not confirm the link between the school and the assailants, saying police have not informed them of any connection.
Police say patrols have been stepped up at the university as well as at mosques in Quebec City and elsewhere in Quebec.
Police have erected perimeters and road blocks in other areas of Quebec City as part of their investigation. A search is also underway at a home in Sainte-Foy.
'A Québécois accent'
A witness who asked to remain anonymous told Radio-Canada that two masked individuals entered the mosque.
"It seemed to me that they had a Québécois accent. They started to fire, and as they shot, they yelled, 'Allahu akbar!' The bullets hit people that were praying. People who were praying lost their lives. A bullet passed right over my head.
"There were even kids. There was even a three-year-old who was with his father," the witness said.
Call for solidarity with Muslims
Quebec City Mayor Régis Labeaume fought back tears, saying the city is in mourning.
"To the Muslim community, our neighbours, our co-citizens, who count on our support and solidarity, I want to say, 'We love you,'" said Labeaume.
Politicians around the world also denounced the deadly act.
A message on the Facebook page of the mosque's administration said: "Thank you for the hundreds of compassionate messages coming from everywhere."
Vigils across the province have been planned for the coming days.
The Islamic cultural centre of Quebec was previously the target of vandals.
Last June, during the Muslim holy month of Ramadan, a pig's head was left on its doorstep.
Authorities are asking anyone with information into Sunday's attack to contact Quebec provincial police at 1-800-659-4264.
Police say they have received 46 calls on the line so far.
With files from Radio-Canada
(cbc.ca/news)