02/23/2013 01:44 EST | Updated 04/25/2013 05:12 EDT

Three people stabbed in Vancouver

A series of stabbings in downtown Vancouver Friday night sent three people to hospital.

One of the victims suffered life-threatening injuries after he was stabbed in the abdomen just before 11 p.m. PT at Keefer and Taylor streets, said police Sgt. Randy Fincham.

Investigators believe a single person is responsible for all of the attacks, but a motive isn't known.

A 23 year-old Surrey man was arrested shortly after the attacks and remains in custody, facing possible assault and weapons-related charges..