CAMPBELL (CBS SF) — Two girls suffered minor injuries when a built-in barbecue pit exploded in the backyard of a Campbell home on Wednesday night, a Santa Clara County fire battalion chief said.

Fire crews responded to the explosion in the 800 block of Briarwood Way sometime around 10:15 p.m., Battalion Chief Wally Finck said.

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Six girls were sitting around the barbecue pit running on natural gas when it exploded sending debris around the backyard, Finck said.

The explosion did not start a fire and did not damage any exposures.

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Two girls with burns were transported to a hospital for minor injuries, according to Finck.

The other four girls in the backyard were picked up by their parent.

The cause of the explosion is under investigation.

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