Montreal police are investigating a suspicious death in the downtown core.

A passerby found the body of a man on Wednesday morning lying in an alley between Rene Levesque Blvd. and de la Gauchetiere St.

Police say the man appears to be in his 40s, and may be homeless.

They have searched the area for any clues as to what may have caused the death, and will be waiting for autopsy results for a final determination.