Six construction workers in eastern Canada were injured, one seriously, when a bridge they were working on collapsed Saturday, local media reported.
The bridge is located near the city of Lucknow in Ontario province, about 200 kilometers west of Canada's biggest city Toronto.
A block of concrete crumbled just before 12:30 p.m. local time (17:30 p.m. GMT) while a construction crew was standing on the bridge, a Canadian Television report said.
The workers were pouring cement on the bridge at the time of the accident. The bridge is brand new, replacing an old bridge over a creek, the report quoted a police spokesman as saying.
The bridge had been closed to traffic but about 15 construction workers were working on it when it collapsed.
The spokesman said it is too early to determine what caused the collapse of the bridge. The Ontario Ministry of Labor will investigate the accident and decide the cause of the collapse.