Dec. 23 (UPI) -- An explosion Tuesday afternoon at a nursing home in eastern Pennsylvania left an unknown number of people trapped and injured, local officials said.
The explosion took place at 2:15 p.m. EST at the Silver Lake Nursing Home in the borough of Bristol. It originated in the nursing home's basement and caused a fire and part of the building to collapse, a Bucks County spokesperson told NBC News.
Multiple injuries were reported, but the total number and possible deaths have not been determined.
The cause of the explosion is unknown as recovery efforts took place late Tuesday afternoon.
The nursing home has 174 beds, most of which were occupied, and a worker told WCAU that about 50 people usually were inside the building.
