Montreal police puzzling over assault in which attackers knocked on victim's door

Montreal police say they are trying to understand why two men assaulted a man in his condo on Montreal's Nuns' Island Thursday.
Police say the incident happened at 10 a.m. at a residence on de la Rotonde Street.
Two men knocked on the front door, asking for the 32-year-old victim, they said.
After coming face-to-face with him, the men proceeded to punch and restrain him, according to police.
A woman was also in the home during the alleged attack.
Police received a 911 call shortly after the assailants fled, they said.
Investigators remain on the scene to determine the events surrounding the incident.
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