THE ASSOCIATED PRESS

ROSTRAVER, Pa. -- Emergency crews say everyone is accounted for and OK after a partial roof collapse at a suburban Pittsburgh ice rink where a youth hockey tournament involving Canadian and U.S. teams. was taking place.

The collapse happened Sunday afternoon at the Rostraver Ice Garden, about 48 kilometres southeast of Pittsburgh. Officials found nothing after searching the building with cadaver dogs and infrared cameras.

Sherri Desroches, vice-president of Ontario's Ajax Minor Hockey said one of the teams playing in Rostraver is the Ajax Knights Tyke White team, which is made up of young children.

"These little boys are seven and eight years old. Tykes are pretty tiny," said Desroches.

She said she has not heard from the coach, Jerry McClean since the incident but added the city was experiencing a heavy snowfall.

Kim Little, a line cook in the rink's restaurant, said people inside heard a crack while a worker was resurfacing the ice on a Zamboni, a small vehicle used to clean and smooth the rink's surface. Minutes later, she said, the roof collapsed.

"The whole roof just fell in, and you could see the sky," Little said.

She said a birthday party was taking place in the building, which also has banquet and meeting rooms and from the outside looks like a large airplane hangar.

The cause of the roof collapse hadn't been determined.

-- With files from The Canadian Press.