OAKLEY, Calif. 7-2-04 — Two firefighters were injured Thursday afternoon when a fire truck rolled over at the scene of a blaze near Kirker Pass and Hess roads in an unincorporated area of Contra Costa County, officials said. According to Battalion Chief Jim Fajardo, the fire first reported at 4:22 p.m. near Kirker Pass and Hess roads was contained at 6:15 p.m. Both were airlifted to John Muir Medical Center in Walnut Creek and “seem to be in good condition overall,” another fire spokesman said. Investigators are looking at a truck that went into a ditch and brought down some power lines as a possible cause of the fire, Fajardo said. No one was believed to have been injured in that accident, according to the California Highway Patrol. At least 20 acres burned in the wind-driven fire in Oakley, according to a fire dispatcher.