(REUTERS)-The International Olympic Committee (IOC) has set up a disciplinary commission for United States swimmer Ryan Lochte and his three team mates after they were found to have lied about an armed robbery during the Rio Olympics, an IOC official told Reuters yesterday.The commission will investigate the affair and could sanction the athletes if they considered their behaviour violated the Olympic charter in some way.

The 32-year-old Lochte, one of America’s most decorated swimmers, had originally said that he, Jimmy Feigen and two other team mates, Gunnar Bentz and Jack Conger, were stopped in a taxi on the way back from a party by gunmen posing as police who stole $400 from them.

The story turned out not to be true and Lochte apologised earlier yesterday.

The U.S. Olympic Committee (USOC) denied a CNN report that Lochte would be suspended by USA Swimming and USOC for allegedly lying about being held up at gunpoint on their way back to the athletes’ village following a night out in Rio.

“It’s absolutely not true,” USOC spokesman Mark Jones said of the report, which was based on unnamed sources.