An explosion destroyed a home in suburban Pittsburgh on Wednesday, killing an elderly man and severely injuring his grandchild, authorities said.
The explosion was reported about 1:30 p.m. on Mardi Gras Drive in Plum Borough, about 15 miles northeast of Pittsburgh. Several neighboring homes were damaged, fire officials said.
Richard Leith, 64, was babysitting his grandchild in the home, according to John J. Smith, an investigator with the Allegheny County medical examiner's office. Both were transported to local hospitals, though Leith died later in the afternoon. 
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CNN's Ninette Sosa contributed to this report.
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