PHOENIX — Authorities in Phoenix are responding to a wreck in which a large tanker truck has rolled on top of at last one vehicle.

Part of the truck is atop the front end of a very heavily damaged pickup, and a car that may also be damaged is positioned immediately behind the pickup.

Fire Capt. Larry Subervi says information on the wreck isn’t immediately available, and it’s not known whether there are injuries and what the tanker was carrying.

The wreck occurred Monday morning in southwest Phoenix near Lower Buckeye Road and South 59th Avenue.