Former "Malcolm in the Middle" child star Frankie Muniz has said he had suffered a mini-stroke, at the age of 26.
Muniz put his acting career on hold six years ago to race cars for a living, and earlier this year he joined a rock band.
According to celebrity website TMZ.com, Muniz was taken ill in Arizona last Friday when friends noticed he was having trouble speaking and understanding.
The actor's agent did not return calls for comment.
Muniz played the title role in the hit TV comedy "Malcolm in the Middle" for six years, and appeared in teen movies "Big Fat Liar" and "Agent Cody Banks."