Explosion in law firm

Photo: CTV

Emergency crews have surrounded a law firm in south-central Winnipeg after reports of a possible explosion.

There are reports that a woman, who inadvertently triggered the bomb, was rushed to hospital with serious injuries to her upper body.

Police have put crime scene tape around the Petersen King law office.

A police tactical team, a bomb unit and a fire hazardous materials crew are on site.

Radio station CJOB says that some witnesses reported hearing an explosion.