Diesel truck soot likely sparked major California wildfire

A California wildfire raging through dry brush and timber east of Los Angeles, forcing thousands of people from their homes, was likely sparked by burning soot from the exhaust of a diesel truck, investigators said on Monday.The blaze, dubbed the Apple Fire, has scorched more than 26,000 acres (10,500 hectares) since erupting last Friday in the Riverside County community of Cherry Valley, about 70 miles (120 km) east of Los Angeles, and was only 5% contained as of Monday, fire officials said.The