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The fire chief said the pressure-treated deck seemed to be built to standards.
A deck collapsed during a birthday party In the Lehigh Valley, injuring seven.
About 20 people were on the backyard deck Wednesday night at a home in Catasauqua when it gave way. People fell about 12 feet to the ground, according to the Morning Call.
The injuries were minor -- things like fractures, bruises and back pain -- and the people treated were all adults. The borough's code enforcement officer will investigate.
"It's standard construction that they would use for a deck," Catasauqua Fire Chief Samuel Burrows told the Call. "It was probably just deterioration from age. I didn't see anything abnormal."