US Swimmer Fought With Security Guard on Night of Alleged Robbery: Police Source The alleged robbery took place on Sunday, Aug. 14.

 -- As the police investigation continues into the alleged robbery of four U.S. Olympic swimmers in Rio, a Brazilian police source told ABC News that "one of the swimmers was seen on CCTV footage breaking down the door to the bathroom at [a] gas station and fighting with a security guard" on the night of the incident.

Police told ABC News that the swimmers "offered 100 reals and $20" to compensate for the damage.

Surveillance video from Brazil’s Globo TV shows the swimmers at a gas station.

Swimmer Ryan Lochte claimed on Sunday that he and three teammates were robbed in a taxi early that morning while heading to the Olympic Village in Rio de Janeiro.

Additional surveillance footage obtained by Globo TV shows the swimmers arriving at the French House party around 1:45 a.m. and leaving four hours later. According to the judge, the Olympic athletes claimed to have left the party at 4 a.m.

Lochte told NBC News' Matt Lauer Wednesday night that the swimmers used a restroom at a gas station and when they got back to their taxi, the driver didn't move. That's when two men approached with guns and badges and told them to get out and get down, Lochte said.

Lochte returned to the U.S. on Wednesday, but the three other swimmers — Jack Conger, Gunnar Bentz and James Feigen — remain in Brazil.

United States Olympic Committee spokesman Patrick Sandusky said Conger and Bentz were detained Wednesday night "shortly before their flight was scheduled to depart from Rio."

"They were released by local authorities, with the understanding that they would continue their discussions about the incident," he said.

Sandusky said Lochte's teammates "are cooperating with authorities and in the process of scheduling a time and place today to provide further statements to the Brazilian authorities."

"All are represented by counsel and being appropriately supported by the USOC and the U.S. Consulate in Rio," he added.