Originally Posted by CBC News

The domed roof of B.C. Place Stadium collapsed with a loud bang on Friday afternoon and is completely flat.

Two City of Vancouver workers told CBC News that there appeared to have been a hole in the roof.

They said they heard some flapping, followed by what sounded like an explosion.

They said they believe the whole internal roof support structure may be gone.

Former CBC journalist Kathryn Gretsinger said the deflated dome was the "strangest sight ever" as she travelled into downtown Vancouver over the Cambie Bridge.

She said there was only a circular rim of concrete visible when looking up from outside.

A CBC listener who lives in the Citygate condos near the stadium told CBC Radio he could see a 10-metre tear in the roof, which now looks like a "reverse dome."

The stadium, which is home to the B.C. Lions football team, was built more than 20 years ago for Expo 86. It has been the largest air-supported stadium in the world.