Police are investigating the suspicious death of a woman in Montreal North last night.

A body was discovered in a residential duplex on Hotel-de-Ville Street late Friday evening.

Police were called to the scene at around 9:30 p.m. where they found the body of the woman, in her early thirties.

They are interviewing the male resident of the apartment, whom police call an "important witness."

An autopsy will be conducted later today, to determine the cause of death and the woman's identity.