Gunnar Bentz and Jack Conger, two U.S. swimmers who claimed to be with Ryan Lochte when he was allegedly robbed at gunpoint, were taken off their flights out of Rio on Wednesday as authorities continue to investigate.

“We can confirm that Jack Conger and Gunnar Bentz were removed from their flight to the United States by Brazilian authorities,” U.S. Olympic Committee spokesman Patrick Sandusky said. “We are gathering further information.”

Lochte and teammate Ryan Feigen were ordered to remain in Rio earlier on Wednesday, but the former had already returned to the United States, while Feigen was unable to be located.

Authorities have not found evidence to support Lochte’s widely-publicized assertion that he and his teammates were the victims of an armed robbery while returning to the Olympic Village early last Sunday morning.

There have also apparently been discrepancies in the statements Lochte and Feigen initially gave to authorities, as well as what items were allegedly stolen.