Updated

An arrest warrant was issued for Gucci Mane after a fan told police the rapper hit him in the head with a champagne bottle at a downtown Atlanta nightclub.

James Lettley, of Fort Hood, Texas, said he was in Atlanta for his birthday and heard that the rapper -- whose real name is Radric Davis -- was going to be at the Harlem Nights Ultra Lounge promoting a new mixtape.

Lettley, 32, said Saturday he wanted to get a picture with the rapper and was talking to a security guard when he was hit March 16.

"Once he struck me in my head, I looked at him in a state of shock and looked at him like `why?"' Lettley said. He said he was then hit in his face by a second man and left the club.

Police said the assault appeared to be unprovoked and caused a severe gash to Lettley's head.

He was taken to Grady Memorial Hospital and said he had to get 10 stitches. Police said the rapper may have taken off in a white Chevrolet Tahoe.

Lyon said a warrant has been issued for aggravated assault. Calls to numbers listed for Davis were not returned Saturday. It's unclear if the rapper has an attorney.