A cross-border brush fire that erupted Monday in remote, rugged terrain near Tecate Peak continued spreading Tuesday, scorching hundreds of open acres but posing no structural threats as ground and airborne crews worked to contain the flames.
By mid-afternoon Tuesday, roughly 24 hours after erupting near Marron Valley Road in Dulzura, the Border 6 Fire, which began about 30 miles southeast of downtown San Diego, had blackened an estimated 200 acres on the northern side of the U.S.-Mexico line and charred at least twice that amount of land in Mexico, according to Cal Fire.
Ground crews had to labor over a rocky, mountainous landscape while battling the blaze along with personnel in air tankers and water-dropping helicopters, said Mike Cornette, a fire captain with the state agency.
As of 3 p.m. Tuesday, the burn zone remained fully uncontained, Cal Fire reported.
The cause of the fire was under investigation.
