Two fast-moving bush fires rage amid a brutal heatwave in the US state of California.<br /><br /> Smoke rises from the San Gabriel Mountains behind Los Angeles as the fires spread through hundreds of acres of brush. <br /><br /> Firefighters work to prevent damage to power lines located on hilltops. <br /><br /> The first of the fires in the Azusa area was sparked by a car crash. <br /><br /> Just a few hours later it has spread to more than three square kilometers.<br /><br /> The second fire started burning a short distance away in the Duarte area. The flames are a lot closer to homes than the first. <br /><br /> Hundreds of residents have been moved to safety but authorities say if the wind changes direction, the situation may become a lot worse. <br /><br /> The cause of the second fire is not yet known.<br />
