EAST ORANGE, New Jersey (WPVI) -- Three cars were torched when a manhole exploded in New Jersey on Friday.
One of those cars was parked over the manhole when the blast happened in East Orange, officials say.
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The heat from the flames caused the tires on the vehicles to explode.
One police officer had a minor injury, officials say.
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The officer was struck by a vehicle that was trying to escape the blaze.