SAN FRANCISCO (CBS SF) — The Mariposa off- and on-ramps for Interstate 280 in San Francisco reopened after firefighters battled a blaze on Mariposa Street Sunday morning, the California Highway Patrol said.

The fire was reported around 6 a.m. and originated in the sub-basement of a commercial structure at the intersection of Mariposa and 18th streets, Fire Lt. Jonathan Baxter said.

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Firefighters controlled the blaze by 6:45 a.m. The ramps remained closed for less than two hours to accommodate cleanup and firefighting equipment in the roadway, according to the California Highway Patrol.

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No injuries have been reported in the blaze and Baxter said the fire didn’t damage the freeway overpass.

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