(Cross-border fire)…It started in Mexico early Saturday morning.

It burned over 500 acres in Mexico before crossing into the United States at around 6:00 Saturday morning south of Dulzura. Cal Fire spent the day combating the blaze. They were able to contain the fire by Saturday evening. The fire burned around 100 acres on the US side of the border. No structures were threatened, burning only brush. No injuries were reported. The cause is not known.