More than 240 firefighters were sent to Lake Isabella on Sunday morning to stop a grass fire. Officials say the cause of the fire may be related to possible target shooting in the area. Ricocheted bullets can ignite a fire in dry grass. Fire crews were able to stop the progress at 33 acres. They will remain on scene to mop up hot spots. Containment as of Sunday afternoon is 80 percent, but full containment is expected by Monday morning. Fire investigators are asking for the public's help in finding the driver of a white or silver sedan. The car was seen leaving the scene around the time that the fire started.