Quebec City (CNN): Six people are dead after a shooting at a mosque in Quebec City, according to Quebec Provincial Police. Eight people were injured. The attack, which took place at the city's Quebec Islamic Cultural Center on Sunday, is being investigated as an act of terrorism by police.
In what was described as a coordinated attack, witnesses say at least two gunmen wearing black fired indiscriminately into the dozens of worshipers -- including families -- in the mosque.
Thirty-nine people who were at the mosque during shooting were unharmed, Christine Coulombe, spokeswoman of National Police of Quebec, said. Of the eight injured, six are described as being in critical condition.
Two people have been arrested, a police said at a news conference. One was captured near the mosque and the other was apprehended on a highway nearby.
The Canadian province's premier, Philippe Couillard, called the shooting a terrorist act on Twitter.