Roof collapse in Chinatown displaces 20.

Roof collapse at a building under renovation in Chinatown dislocated about dozens of people on Tuesday night.

Toronto Fire Platoon Chief James Green said the roof of an unoccupied building under renovation on Spadina Avenue, south of College Street, collapsed at around 7 p.m.

No injuries were reported but about 20 people who live on either side of the affected building were evacuated.