SEMINOLE, Okla. (AP) - The Seminole County Sheriff's Office says an explosion at Tiger Tank Truck Co. near Seminole has left one man dead.

The explosion Wednesday morning occurred when a propane truck was used in an effort to thaw a frozen valve on an empty tanker truck.

The blast destroyed both trucks and a nearby building. Other details were not immediately released.

A spokeswoman for Tiger Truck based in Poteau says that company is NOT affiliated with Tiger Tank Truck Co.

(Copyright 2010 by The Associated Press. All Rights Reserved.)