MONTREAL -- A 28-year-old man died Friday after an apparent workplace accident at Universite de Montreal.

Emergency workers found the man in critical condition underneath one of the school's escalators.

He died in hospital.

Montreal police transferred the investigation to the province's workplace safety commission, which said the worker was conducting repairs to an escalator and suffered a wound to his arm.

Police erected a safety perimeter around the scene and were questioning witnesses.

The workplace safety commission did not confirm whether the man was an employee of the university.