Six people were killed and eight wounded when gunmen opened fire at a Quebec City mosque during Sunday night prayers, in what Canadian Prime Minister Justin Trudeau called a "terrorist attack on Muslims". Police said two suspects had been arrested, but gave no details about them or what prompted the attack. Initially, the mosque president said five people were killed and a witness said up to three gunmen had fired on about 40 people inside the Quebec City Islamic Cultural Centre. Police said only two people were involved in the attack. "Six people are confirmed dead - they range in age from 35 to about 70," Quebec provincial police spokeswoman Christine Coulombe told reporters, adding eight people were wounded and 39 were unharmed.