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VISTA, Calif. — A vegetation fire that broke out in North County Thursday prompted officials to temporarily shut down freeway lanes, fire officials said.

The blaze, dubbed the Vista Fire, started around 11:15 a.m. off state Route 76 near East Vista Way and Old River Road near the communities of Vista and Bonsall.

As of 12:10 p.m., the fire’s forward rate of spread had been stopped, according to Cal Fire San Diego. The blaze was halted at two acres.

Westbound lanes of SR-76 at Vista Way were initially forced to close but eventually reopened after about three hours, California Department of Transportation tweeted.

The cause of the fire is not yet known.