A man believed to be in his 70s is in police custody after a stabbing in Scarborough left one woman with serious injuries.
Police were called to a building on Greencrest Circuit in the area of Markham Road and Lawrence Avenue just after 7 p.m.
Investigators say a woman in her 50s was stabbed in the torso.
She was transported to a trauma centre suffering from serious, possibly life-threatening injuries.
There has been no word on charges.
According to police, the victim and the suspect knew each other.