Delivery truck on fire in San Francisco, blocking I-280 on-ramp

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A delivery truck was on fire in San Francisco at 6th and Brannan streets, blocking the on-ramp to Interstate 280, according to the San Francisco Fire Department.

First call of the fire came in at 5:15 p.m. and it took firefighters about 15 minutes to extinguish the flames.

The fire generated a significant amount of smoke. No injuries or structure damage has been reported, officials said.

Cause of the fire has not been disclosed.