SAN BRUNO (BCN) – Several small brush fires burned along Interstate Highway 280 in San Bruno late Wednesday morning, shutting down two southbound lanes of the highway for about four hours, a California Highway Patrol officer said.

The fires were reported about 10:45 a.m. near the Crystal Springs Road off-ramp from southbound Highway 280, CHP Officer John Short said.

The blazes, which burned along a quarter- to half-mile stretch, were apparently sparked by a car fire on the side of the road, Short said.

The fires were extinguished by about 11:30 a.m., but firefighters from Cal Fire remained in the area for a few more hours to make sure the brush did not reignite, Short said.

The emergency response initially blocked the two right lanes of the highway as well as the off-ramp to Crystal Springs Road, according to Short.

The off-ramp reopened at about 11:35 a.m. and the lanes reopened once fire crews left the scene shortly after 2:50 p.m., Short said.

The blazes, which burned along a quarter- to half-mile stretch, were apparently sparked by a car fire on the side of the road, Short said.

The fires were extinguished by about 11:30 a.m., but firefighters from Cal Fire remained in the area this afternoon and “are making sure it doesn’t come back up,” Short said.

Investigators were also trying to determine what caused the car to catch fire, he said.

The emergency response initially blocked the two right lanes of the highway as well as the off-ramp to Crystal Springs Road, according to Short.

The off-ramp reopened at about 11:35 a.m., but the two lanes were expected to be closed until at least 3 p.m., he said.

(© 2011 CBS Broadcasting Inc. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. Bay City News contributed to this report.)

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