Photo: The Canadian Press Montreal police are investigating after fatal stabbings of a woman around twenty on the east side of the city on Friday night. Police say they received a call around 7pm for a two-person collision in an apartment. The woman, whose identity has not been made public, was found with at least one wound on her upper body and was later pronounced dead at the hospital. Police say a 32-year-old man known to police was arrested near the scene. Police are still trying to determine if the victim and the suspect knew each other. The homicide is the fifth reported in Montreal since the beginning of the year.