Crews using a crane pulled a fire engine from a large sinkhole that opened as it was responding to a broken water main on a Los Angeles street.

Four firefighters escaped injury as mud and water poured into the vehicle's cabin Tuesday in the San Fernando Valley.

The firefighters were attempting to back the 22-ton engine out of the street when the collapse occurred.

The sinkhole was caused by a broken, 6-inch cast iron pipe. A Department of Water and Power official says it's unlikely the burst pipe is related to another one that broke two miles away over the weekend and flooded homes and cars.

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