The Secret Service did not identify the three agents leaving the government or eight more it said remain on administrative leave. In a statement, it said one supervisor was allowed to retire and another will be fired for cause. A third employee, who was not a supervisor, has resigned.
The agents were implicated in the prostitution scandal in Colombia that also involved about 10 military service members and as many as 20 women. All the Secret Service employees who were involved had their security clearances revoked.
"These are the first steps," said Rep. Pete King, R-N.Y., chairman of the House Homeland Security Committee, which oversees the Secret Service. King said the agency's director, Mark Sullivan, took employment action against "the three people he believes the case was clearest against." But King warned: "It's certainly not over."
The scandal, which has become an election year embarrassment for the Obama administration, erupted last week after 11 Secret Service agents were sent home from the colonial city of Cartagena on Colombia's Caribbean coast after a night of partying that reportedly ended with at least some of them bringing prostitutes back to their hotel. The special agents and uniformed officers were in Colombia in advance of President Barack Obama's arrival for the Summit of the Americas.
In Washington and Colombia, separate U.S. government investigations were already under way. King said he has assigned four congressional investigators to the probe. The House Committee on Oversight and Government Reform, led by Rep. Darrell Issa, R-Calif., sought details of the Secret Service investigation, including the disciplinary histories of the agents involved. Secret Service investigators are in Colombia interviewing witnesses.
New details of the sordid night emerged Wednesday. A 24-year-old self-described prostitute told The New York Times that she met an agent at a discotheque in Cartagena and after a night of drinking, the pair agreed the agent would pay her $800 for sex at the hotel. The next morning, when the hotel's front desk called because the woman hadn't left, the pair argued over the price.
"I tell him, `Baby, my cash money,"' the woman told the newspaper in an interview in Colombia. She said the two argued after the agent initially offered to pay her about $30 and the situation escalated, eventually ending with Colombian law enforcement involved. She said she was eventually paid about $225.
Romney told radio host Laura Ingraham on Wednesday that "I'd clean house" at the Secret Service.
"The right thing to do is to remove people who have violated the public trust and have put their play time and their personal interests ahead of the interests of the nation," Romney said.
While Romney suggested to Ingraham that a leadership problem led to the scandal, he told a Columbus, Ohio, radio station earlier that he has confidence in Sullivan, the head of the agency.
"I believe the right corrective action will be taken there and obviously everyone is very, very disappointed," Romney said. "I think it will be dealt with (in) as aggressive a way as is possible given the requirements of the law."
When asked, the Romney campaign would not say whether he had been briefed on the situation or was relying upon media reports for details.
At least 10 military personnel who were staying at the same hotel are also being investigated for misconduct.
Two U.S. military officials have said they include five Army Green Berets. One of the officials said the group also includes two Navy Explosive Ordinance Disposal technicians, two Marine dog handlers and an Air Force airman. The officials spoke on condition of anonymity because the investigation is still under way.
Secret Service's Office of Professional Responsibility, which handles that agency's internal affairs, is investigating, and the Homeland Security Department's inspector general also has been notified.
Sullivan, who this week has briefed lawmakers behind closed doors, said he has referred to the case to an independent government investigator.
Col. Scott Malcom, a spokesman of U.S. Southern Command, which organized the military team assigned to support the Secret Service's mission in Cartagena, said Wednesday that an Air Force colonel is leading the military investigation and arrived in Colombia with a military lawyer Tuesday morning.
The troops are suspected of violating curfews set by their commanders.
"They were either not in their room or they showed up to their room late while all this was going on or they were in their room with somebody who shouldn't be there," Malcom said.
Lawmakers have called for a thorough investigation and have suggested they would hold oversight hearings, though none has yet been scheduled. The incident is expected to come up next week on Wednesday when Homeland Security Secretary Janet Napolitano appears before the Senate Judiciary Committee for a previously scheduled oversight hearing.
House Speaker John Boehner, R-Ohio, said that for now, he is interested in what actually happened. He did not address how much responsibility Obama should bear for the scandal or whether Congress should hold hearings on it.