According to witnesses, people ran out of the fast-food restaurant after the fire started.
Witnesses told Action 4 News that a McDonald TMs restaurant in Brownsville was on fire.
The restaurant on FM 802 and Padre Island Highway started at 6 p.m. just after rush hour traffic, according to witnesses.
Three fire trucks and an ambulance were reported at the scene.
The fire was put out around 6:30 p.m.
Details on how the fire started was not immediately released.