SWEETWATER, Texas -

A wind turbine fire had Sweetwater and Trent fire crews busy fighting a grass fire Monday morning.

It happened around 10 a.m. east of Lake Sweetwater on the Trent Mesa in Nolan County.

Fire investigators believe the turbine either had an electrical malfunction or a bearing that overheated.  

Fire from the turbine started the grass fire, crews quickly put it out. No one was hurt.