Four days after Ryan Lochte first made the claim that he and three fellow swimmers were robbed at gunpoint, much of the story is in question.

It's still not clear exactly what happened to the swimmers, but conflicting details have emerged regarding Lochte's version of the story.

Here's a look at what we know about what happened on Sunday and in the days since the alleged robbery.

(All times converted into local time in Rio de Janeiro.)

Sunday, August 14

4 a.m. Ryan Lochte, Jimmy Feigen, Jack Conger, and Gunnar Bentz say they left the France House to return to the athletes village in Rio.

(This gap is the time in question. Reports have varied over what happened between when the swimmers left the France House and when they arrived at the Olympic Village.)

6:56 a.m. Surveillance video shows the four athletes checking in at the athletes village. According to a Brazilian judge, that trip would normally take 30 to 40 minutes in the early morning hours.

10:27 a.m. The first report of Lochte being held up comes from Fox Sports Australia's Ben Way on Twitter.

11:27 a.m. The International Olympic Committee, citing the U.S. Olympic Committee, denies the news.

11:39 a.m. Ryan Lochte's mom Ileana tells USA TODAY that the story is true.

1:45 p.m. Ryan Lochte describes the robbery to Billy Bush on TODAY.

"We got pulled over, in the taxi, and these guys came out with a badge, a police badge, no lights, no nothing just a police badge and they pulled us over," Lochte said. "They pulled out their guns, they told the other swimmers to get down on the ground — they got down on the ground. I refused, I was like we didn't do anything wrong, so — I'm not getting down on the ground."And then the guy pulled out his gun, he cocked it, put it to my forehead and he said, 'Get down,' and I put my hands up, I was like 'whatever.' He took our money, he took my wallet — he left my cell phone, he left my credentials."

1:58 p.m. USOC spokesperson Patrick Sandusky issued a statement confirming the incident:

"According to four members of the U.S. Olympic Swimming Team (Gunnar Bentz, Jack Conger, Jimmy Feigen and Ryan Lochte), they left France House early Sunday morning in a taxi headed for the Olympic Village. Their taxi was stopped by individuals posing as armed police officers who demanded the athletes' money and other personal belongings. All four athletes are safe and cooperating with authorities."

6:57 p.m. Lochte thanks everyone for their support and again confirms he was the victim of a robbery.

A photo posted by Ryanlochte (@ryanlochte) on

7:30 p.m. Lochte reportedly meets with representatives from the State Department, FBI, Tourist Police and the USOC's security team.

Monday, August 15

Rio Olympics spokesman Mario Andrada apologizes to Lochte and the three other swimmers for the reported robbery.

Tuesday, August 16

Lochte returns to the U.S. on an undisclosed flight.

Sometime in the afternoon: Lochte speaks to USA TODAY, saying he and his teammates did not initially report the incident "because we were afraid we'd get in trouble."

10:47 p.m. The Associated Press reports that Rio police have not found evidence to support the claim of robbery at gunpoint.

Wednesday, August 17

Sometime in the morning: A Brazilian judge rules that Ryan Lochte and Jimmy Feigen could not leave the country and that their passports will be seized. Judge Keyla Blank said there were too many inconsistencies in the swimmers' reports.

12:29 p.m. The USOC says Brazilian authorities went to the Olympic Village in the morning to meet with Lochte and Feigen, and collect their passports. However, the swim team moved out of the village when their competition ended and were not there.

“Local police arrived at the Olympic Village this a.m. and asked to meet with Ryan Lochte and James Feigen and collect their passports in order to secure further testimony from the athletes. The swim team moved out of the village after their competition ended, so we were not able to make the athletes available.

Additionally, as part of our standard security protocol, we do not make athlete travel plans public and therefore cannot confirm the athletes’ current location.

We will continue to cooperate with Brazilian authorities.”

9:10 p.m. Jack Conger and Gunnar Bentz flight is scheduled to leave Brazil. However, Brazilian authorities pulled the pair off their flight before it departed.

By 11 p.m. Lochte changes part of his story in a conversation with NBC's Matt Lauer, but says he wouldn't make up a story like this.

Thursday, August 18

1:52 a.m. The USOC issues a statement confirming that Conger and Bentz were detained by Brazilian authorities.

"Jack Conger and Gunnar 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 on Thursday. James Feigen is also communicating with local authorities and intends to make further statements regarding the incident on Thursday as well. We will continue to provide updated information as it is appropriate."

10:30 a.m. Brazilian authorities tell ABC one of the swimmers broke down a bathroom door at the gas station in question and fought with a security guard.

11:22 a.m. The USOC says Bentz, Conger and Feigen will meet later Thursday to give statements.

12 p.m. Rio Olympics spokesman Mario Andrada says no apology is needed from the swimmers.

"No apologies are needed from the athletes. This case they were having fun--training under pressure. I understand they are under investigation. Cannot go much further. Give these kids a break, sometimes we make actions that we later regret. They had fun. They made a mistake. Life goes on."

1:35 p.m. Sportscenter tweets that Lochte's teammates have told police he made up the story about the robbery.

1:36 p.m. Brazilian outlet Globo.com releases video surveillance from the gas station that shows the interaction between the swimmers and security at the gas station. The article contends the swimmers made up the robbery story.

1:53 p.m. The Associated Press confirms ABC's reports about what happened at the gas station. According to AP, the swimmers paid for the broken door after the manager asked them.

4 p.m. Rio police hold a press conference and say that the U.S. swimmers lied about being robbed.

“No robbery was committed against these athletes. They were not victims of the crimes they claimed."

7 p.m. The Associated Press reports Gunnar Bentz and Jack Conger have checked in and moved through security to a flight at the Rio airport.

8:35 p.m. The USOC apologizes for the "distracting ordeal" involving the four swimmers, saying it will review the matter for possible punishment.

Friday, August 19

6:22 a.m. The Associated Press reports that Feigen has agreed to pay $10,800 on Friday and will then leave Brazil to return home.

11:12 a.m. Ryan Lochte posts to social media apologizing for his behavior and "for not being more careful and candid in how I described the events of that early morning."

A photo posted by Ryanlochte (@ryanlochte) on