SAN FRANCISCO (CBS SF) — A California Highway Patrol officer was injured in a car fire on a Treasure Island ramp on the Bay Bridge Monday evening, a CHP spokesman said.

Officers were notified of the fire around 7:30 p.m. on eastbound Interstate Highway 80 off-ramp, CHP Officer Vu Williams said.

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A CHP officer driving east on the bridge noticed his patrol car started to smoke and drove it to the off-ramp, Williams said.

Another CHP officer showed up to help the driver and was injured by flying debris from the car that was fully engulfed in flames, according to Williams.

The injured officer suffered minor injuries and was transported to San Francisco General Hospital for treatment, he said.

Video of the fire was captured by a bystander.

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No other injuries were reported.

A Sig-alert was issued at 7:41 p.m., according to the CHP.

San Francisco firefighters responded to the scene and extinguished the blaze, a fire dispatcher said.

Fire crews were still at the scene as of about 8:15 p.m., the dispatcher said.

The cause of the fire is under investigation.

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The ramp was estimated to reopen around 9:15 p.m., Williams said.