LAS VEGAS (AP) — Rap musician 50 Cent is not a suspect in an investigation of a Los Angeles man's complaint that he was attacked and robbed of jewelry in Las Vegas, a police spokesman said Wednesday.

Las Vegas police haven't positively identified a suspect in the alleged May 2 robbery at or near boxer Floyd Mayweather Jr.'s gym a few blocks west of the Las Vegas Strip, Officer Larry Hadfield said.

But the rapper, whose legal name is Curtis James Jackson III, has been ruled out, Hadfield said.

The investigation remained open, and Hadfield said a police report would not be made public unless charges are filed.

The musician's attorney, Scott Leemon, said he was upset by what he termed irresponsible and defamatory media reports linking his client to a robbery complaint.

"We appreciate the fact that the police have publicly stated 50 had nothing to do with these allegations," Leemon said.

Leemon on Tuesday denied his client or his security guards were involved.

Celebrity website TMZ reported that LAX Jewelry Co. owner Robert Marin said he showed the rapper a diamond watch and chain valued at some $250,000 at a Strip nightclub hours before he was pistol-whipped and robbed by two of the rapper's associates.

The alleged attack occurred the morning before Mayweather defeated Manny Pacquiao in a championship boxing match at the MGM Grand Garden Arena.

Marin didn't immediately respond to telephone messages to his business by The Associated Press.