At least six people were killed and eight injured in a shooting at a mosque in Quebec City, Canada, Sunday night, an act the nation's prime minister condemned as a "terrorist attack on Muslims in a centre of worship and refuge."

Two suspects were arrested after the incident, the city's police department said during a news conference early Monday. The suspects' conditions were not revealed.

The Royal Canadian Mounted Police were joining in the investigation, officials said.

Quebec City Islamic Cultural Centre President Mohamed Yangui told the Associated Press the shooting happened in the men's section of the mosque. He said five males had died and he worried that some were children.

Yangui told the AP that about 60-100 people would have been at the center at the time of the shooting.

A witness told Reuters that more than one gunman fired on people inside the mosque.

The situation was contained by 10:40 p.m. ET and people inside the mosque had been evacuated, police said.

Canadian Prime Minister Justin Trudeau issued his condolences late Sunday.

"It is heart-wrenching to see such senseless violence.
Diversity is our strength, and religious tolerance is a value that we, as Canadians, hold dear," Trudeau said in a statement.

"Muslim-Canadians are an important part of our national fabric, and these senseless acts have no place in our communities, cities and country."

(NBCN)