UPDATE 11:32pm ET:
The USOC and USOC Scott Blackmun have released a statement, saying that Bentz and Conger have had their passports returned and they boarded flights to the United States. Feigen has provided the Brazilian authorities with a revised statement and hopes to have his passport returned soon.
Blackmun continued, "As we understand it, the four athletes... left France House early in the morning of August 14 in a taxi headed to the Olympic Village. They stopped at a gas station to use the restroom, where one of the athletes committed an act of vandalism. An argument ensued between the athletes and two armed gas station security staff, who displayed their weapons, ordered the athletes from their vehicle, and demanded the athletes provide a monetary payment. Once the security officials received money from the athletes, the athletes were allowed to leave.