An armed robbery was reported at 535 W. 111th street, between Broadway and Amsterdam Avenue, at approximately 11:30 p.m.
Three armed, masked men are being sought in connection to the crime, according to reports.
The news site Breaking911 reported that a level one NYPD mobilization responded to the break-in, which indicates a local precinct task force.
Police were out in force in the hour following the incident. A Spectator reporter at the scene overheard half a dozen detectives discussing the possibility that one of the weapons used was thrown into a nearby gutter.
The NYPD's press hotline had no further details on the incident, and it's unclear if anyone was hurt. A witness who said he was in the area around 11:45 p.m. said he saw an ambulance leaving the location, although this could not be confirmed.
535 W. 111th, which is owned by Columbia, appears to be graduate student or University Apartment Housing.
Columbia students did not receive any emergency alerts about the situation.
Check back for updates.