LOS ANGELES: A wind-driven wildfire swept over a jammed Southern California freeway — the critical corridor between Los Angeles and Las Vegas — Friday afternoon, setting several cars and tractor-trailer trucks ablaze, and burning several homes. No motorists were reported injured, officials said. Television video showed several vehicles burning at El Cajon Pass on Interstate 15, packed with vacationers and commuters. The high-desert freeway was closed in both directions. Several homes were also seen burning. A drone flying over the area forced fire officials to temporarily ground air tankers, according to news reports. It was the third time recently that a remote-controlled aircraft had interfered with firefighting in California.