BRISTOL, Pa. — There was a gas explosion reported Tuesday at a nursing home just outside Philadelphia and people are believed to be trapped inside, authorities said.

“We understand that there are people trapped inside,” said Ruth Miller, a Pennsylvania Emergency Management Agency spokesperson.

Bucks County officials notified the agency of an explosion before 3 p.m. at the Silver Lake nursing home in Bristol Township, about 20 miles (32 kilometers) northeast of Philadelphia.

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