Montreal police have arrested a man in a triple stabbing at a restaurant that left one person in critical condition on Thursday.
Two others suffered knife wounds to the head following the lunchtime attack which appears to have transpired in front of many horrified witnesses inside a restaurant.
Ambulance service spokesman Guy St-Pierre said the victim in the worst shape was a man in his 60s who was stabbed in the chest.
"The injuries are serious," Mr. St-Pierre said.
The two other victims, both men in their 40s, sustained head injuries considered to be minor.
Mr. St-Pierre said all three were taken to the hospital.
Meanwhile, police arrested a man in his 30s at the scene.
The stabbings took place inside a bistro on St-Denis Street, in north-central Montreal, not far from the popular Jean-Talon market.
At least one patron who witnessed the attack needed to be treated for shock.
Const. Yannick Paradis said police weren't immediately sure if the victims were patrons or employees.
There were others in the establishment and Const. Paradis said police will have to meet with witnesses.
Police don't have a motive for the attack.