Crews with the Round Rock and Georgetown fire departments responded to a grass fire west of I-35 Thursday evening.
It happened at around 5:30 p.m. west of I-35 between FM 1431 and Westinghouse Road.
Units initially responded to vehicle fire call, but the flames spread to the nearby area. No injuries were reported, the Round Rock Fire Department said.
Driver should expect road closures in the area.
Further details were not immediately available. This story will be updated.