Working structure fire reported in a restaurant at 21470 North John Wayne Parkway (State Route 347) in Maricopa, Arizona.
Units responding include: E572, E574, E575, W-571(274), LT571, BC5, BC231, ED3000, BC421, BC571, HM429, MARP00 and SWG000. Battalion Chief 571 is command/incident commander.
[Update] Fire crews are on scene at the Sonic Drive-In with heavy smoke inside the building. Firefighters extinguished the blaze. Crews working to remove the smoke from the building.