Firefighters say they are still trying to determine the cause of a fire that broke out on Desert Way between Rio Rangler and Alexander Lake just before 11:00 p.m. Sunday night. Witnesses tell News 4 they saw an aircraft crash at the site of the fire, but firefighters would not say if they found any pieces of aircraft and they suspect it could have been a meteor. Firefighters say airport officials have confirmed all planes are accounted for. The fire was contained at one acre. An investigation into the cause is being conducted.