Pop singer Whitney Houston is accused of punching a man and threatening to kill him during a fight in a hotel lounge, according to a criminal complaint filed Friday with the Fayette County, Ky., attorney's office.

Ransom Brotherton of Lexington filed a complaint saying that Houston assaulted him Friday night when he tried to break up a fight.Brotherton said the fight involved the singer's brother, Michael Houston, and Michael Owens of Austin, Texas, in the Radisson Plaza hotel lounge.

In a related complaint, Owens said that Michael Houston started the fight. He said the singer's brother began yelling at him after someone in a group of people in the lounge yelled, "It's Whitney Houston."

Whitney Houston, 27, was charged with two misdemeanors, assault and terroristic threatening. Michael Houston was charged with assault.

In Wednesday's editions, USA Today quoted a Houston publicist as saying that the singer and her brother were "victims of an unprovoked attack" that began after "Mr. Houston chose not to respond to several racial slurs directed at his sister."