After causing a storm of controversy last week, "Fox and Friends" co-host Brian Kilmeade apologized for saying "all terrorists are Muslims."

Kilmeade's comment on Friday came during a discussion of Bill O'Reilly's appearance on "The View" last week, when O'Reilly's statement that "Muslims killed us on 9/11" caused Whoopi Goldberg and Joy Behar to walk off the set.

Speaking about the incident, Kilmeade said the debate "is almost like our debate on training wheels...they were outraged that somebody was saying...there was a certain group of people that attacked us on 9/11. It wasn't just one person, it was one religion. Not all Muslims are terrorists, but all terrorists are Muslims."

On Monday's "Fox and Friends," Kilmeade apologized, saying, "I misspoke. I don't believe all terrorists are Muslims. I'm sorry about that, if I offended or hurt anybody's feelings. But that's it."

Kilmeade also spoke about the controversy on his radio show Monday, saying that he had meant to say that all the terrorists who carried out the 9/11 attacks were Muslims.