Electrical vault blast scatters concrete, blows out windows at North Hollywood apartment building

NORTH HOLLYWOOD, LOS ANGELES (KABC) -- An underground electrical explosion shattered windows and shook buildings in North Hollywood early Thursday, but did not cause any serious injuries.

The explosion happened after 7 a.m. in the 5600 block of North Farmdale Avenue, in a garden space in front of a three-story, 37-unit building, according to the Los Angeles Fire Department.
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No fire occurred, and no injuries were reported, the LAFD said.

The department said the "forceful blast, heard over a wide area" expelled concrete debris, damaging the exterior of the building and breaking multiple apartment windows.

Some residents said it felt like an earthquake.
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The cause of the blast is under investigation.