CCTV footage later emerged of the swimmers at a petrol station. It was then alleged they were drunk and vandalising a bathroom, which led to them being apprehended by security and made to pay for damages.
Bentz, Conger and Feigen have reportedly been handed bans but not us much as the 10 months handed down to Lochte.
Following the incident, Lochte flew back to the United States, while the other three stayed in Brazil.
Last month a Rio judge ordered their passports be confiscated so that they could not leave the country, with all three questioned by police. Bentz and Conger were reportedly on a plane ready to fly back home, only for federal police to come on board and escort them off.
"I let my team down," Lochte said when asked how he felt being home while his teammates were detained in Brazil.
"I wanted to be there, like, I don't want them to think that I left, and left them dry because they were my teammates.
"I just wanted to make sure that they were at home safe before I came out and talked," he added.
Lochte had similar words of contrition when interviewed by Brazil's Globo TV. "I am sorry, it won't happen again," he said.
"It was my fault ... I was immature."
US Olympic Committee chief executive Scott Blackmun said the swimmers' ordeal wasn't over, confirming "we are going to have further action over this".
"(They) really let down our hosts in Rio, who did such a wonderful job, and we feel very badly about that."
-With News.com.au