CONCORD (CBS SF) — A 25-acre vegetation fire has been contained Friday afternoon at the Tesoro Refinery near Concord, Contra Costa County fire officials reported.

The fire was reported at 2:17 p.m. on refinery grounds and contained at 4:15 p.m. No injuries were reported, according to fire spokesman Ryan Bain.

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He said the fire has been handed back to the Tesoro fire brigade, which will monitor and extinguish the flames.

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The cause of the fire is under investigation.

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