By Chuck Johnston and Joe Sterling, CNN

A fire in a garage at the Texas home of two-time world heavyweight boxing champion George Foreman caused damage to many of his approximately 40 cars, authorities said.

It was unclear what caused the fire, and no one was injured in the blaze at the residence in Huffman, near Houston.

"Thanks to all the fire fighters," Foreman said in a tweet.

Firefighters responded to Foreman's home after a call late Sunday, said Rachel Moreno, a spokeswoman with the Harris County Fire Marshal's Office.

Crews quickly extinguished the flames and contained the blaze to the garage,

There is smoke and water damage to some of the vehicles inside the garage. Moreno did not have details on the cars housed in the garage.

There were people inside the residence at the time of the fire, but it's unclear if Foreman was home.

Foreman, who was a heavyweight champ in the 1970s and 1990s, gained another level of fame as spokesman for the George Foreman Grill.