Most of the Secret Service agents embroiled in a prostitution scandal brought women back to their Colombia hotel rooms before President Obama arrived in town for an international summit, Rep. Pete King said Saturday. 
 
 King said the raunchy rendezvous involved 11 agents and went sour when an agent refused to pay one of the women, who were presumed to be hookers. 
 
 “The agent said, ‘I don't owe you anything,’ but gave the woman some money,” said King (R-L.I.),the head of the House Homeland Security Committee, who was briefed on the matter. “I don't know how much, and it was settled right there.” 
 
 IN COLOMBIA, THE SEX BUSINESS IS SO BIG THAT SOME CALL IT THE 'THAILAND OF LATIN AMERICA' 
 
 As it turned out, the agents’ troubles were just beginning. Local cops were called to the hotel in Cartagena and, because the matter involved foreigners, a report was written up and sent to the U.S. Embassy, King said. 
 
 Embassy officials in turn notified the Secret Service, which immediately launched an investigation. 
 
 At least one supervisor was among the agents involved, King said. He was not certain exactly how many women were involved. 
 
 The scandal — a black eye for the United States’ reputation abroad — was revealed Friday just hours before President Obama arrived in Cartagena. 
 
 The 11 agents were part of an advance team assigned to secure a local hotel before the summit began, yet their attention apparently turned to taking advantage of Colombia’s policy of legal prostitution. 
 
 Five American service members were also accused of misconduct stemming from the scandalous incident at the hotel, according to the U.S. military. 
 
 “They had arranged to have a bunch of prostitutes come by and one of the agents refused to pay a prostitute,” said author Ronald Kessler, one of the leading experts on the Secret Service. “Yes, doubly good judgment there.” 
 
 Fernando Vergara/AP 
 
 Kessler, who was briefed on the investigation by his sources within the agency, told the Daily News Saturday that the spurned hooker told police about the lack of payment. 
 
 The 11 agents were immediately recalled to Washington. 
 
 “Their careers are over,” said Kessler. 
 
 “Number one, it is against basic ethics to go to a prostitute,” he continued. “Number two, it is incredibly embarrassing to the White House.” 
 
 “And number three,” he continued. “It could leave them open to blackmail and a possible assassination attempt.” 
 
 Obama still has “full confidence” in the Secret Service, according to White House spokesman Jay Carney, who declared late Saturday that the incident “has been more of a distraction for the press” than the President. 
 
 Kessler said two of the agents were supervisors who attempted to cover up the mortifying incident. 
 
 The agents were staying at the beachfront Hotel Caribe, which is also hosting the White House staff and the traveling press team. 
 
 Guests at the swanky hotel told reporters that several of the agents had been spotted drinking heavily during their weeklong stay. 
 
 Details of the incident remain murky, but U.S. officials believe one agent took a woman back to his room Wednesday night and threw her out in a dispute over money. 
 
 The woman caused a commotion in the hallway, getting the attention of local cops and other Secret Service agents, a senior official told The New York Times. 
 
 Though it was not known if all 11 members of the Secret Service team are suspected of wrongdoing, they were all recalled as part of the investigation. Several of the agents are married, according to reports. 
 
 Prostitution is legal in Colombia, as long as it is conducted in so-called “tolerance zones.” 
 
 Though the exact boundaries of the zones frequently change and are rarely enforced by police, the coastal city of Cartagena is a popular destination for prostitution and sex tourism. 
 
 Hookers can easily be procured online or in bars or hotels in much of the city. It was not clear how the agents met the women involved in the incident. 
 
 The scandal threatened to overshadow President Obama’s visit to the important summit. He landed in Cartagena Friday night and attended a formal dinner with the other world leaders at Castillo San Felipe de Barajasajas, an historic Spanish fortress. 
 
 The President, who had a full day of summit events Saturday, has not addressed the Secret Service scandal. He is not staying at the Hotel Caribe. 
 
 The Secret Service did not elaborate on the allegations Saturday. The night before, the agency — which is charged with protecting the President — simply confirmed that the officers were pulled back to Washington. 
 
 All of the agents are based in Washington, D.C., according to Kessler, author of “In the President’s Secret Service: Behind the Scenes With Agents in the Line of Fire and the Presidents They Protect.” 
 
 The matter was turned over to the agency’s Office of Professional Responsibility, which handles the Secret Services’ internal affairs. 
 
 With Mark Morales 
 
 jlemire@nydailynews.com 
 
 
 
 Sign up for BREAKING NEWS Emails privacy policy Thanks for subscribing! ||||| U.S. Secret Service director Mark Sullivan has been briefing members of Congress about the allegations that the Secret Service and military personnel brought prostitutes back to their hotel in Colombia last week. NBC's Kristen Welker reports. 
 
 The Colombian prostitute who triggered the scandal that has rocked the Secret Service got angry with two agents who refused to pay her full price for servicing the two of them, leading to a financial dispute over between $40 and $60, according to a government source who has been briefed on the investigation. 
 
 Two agents from the service's elite Counter Assault Team, in Cartagena, Colombia, in advance of President Barack Obama's arrival for the Summit of the Americas over the weekend, had procured the women's services at a local strip club called the Pley Club on the evening of April 11. All the Secret Service agents and officers implicated in the scandal are believed to have gone to the club that evening and brought back women, a U.S. official told NBC News. 
 
 The controversy arose after one of the women went back to a hotel room with two agents. The woman wanted to be paid for serving both agents, the source who has been briefed on the probe told NBC News. Instead, the agents would only agree to split her price, prompting the woman to complain to local police who were stationed in the lobby of the Hotel Caribe, the source said. 
 
 The police then went up to the agents' room and began banging on the door, which the agents at first refused to open, the source said. There are conflicting reports over how the payment dispute was resolved. But two government sources told NBC News the police contacted the U.S. Embassy over the dispute and Embassy officials then arrived at the scene. 
 
 All those with booked rooms at the hotel had to pay a fee of $25 for bringing any guests to their rooms -- and the guests were required to leave some form of identification at the front desk. A quick scan of the hotel register by a U.S. Embassy official established that 11 Secret Service agents had brought back women to their rooms that evening. When Embassy officials notified Secret Service Director Mark Sullivan, he immediately ordered all the agents to fly home, the sources said. 
 
 MSNBC's Thomas Roberts speaks with NBC National Investigative Correspondent Michael Isikoff and former Secret Service agent and current Senate candidate Dan Bongino about the fallout from the Secret Service prostitution scandal. 
 
 The Secret Service members -- including agents and uniformed officers -- were stripped of their security clearances on Monday. 
 
 Included in that group were two high-level Secret Service supervisors, three counter assault officers whose job is to repel attacks and three sniper-team members, who take to rooftops to secure areas where the president might visit, NBC News reported. 
 
 U.S. officials have described the agents' conduct as a potential security breach especially because all the agents involved had access to the president's day-by-day, minute-by-minute schedule. But one official familiar with the security arrangements said that there were no specific security threats during the president's trip. Although agents upon arrival were briefed about current activities by leftist FARC guerrillas and local drug cartels, they were told neither had made any specific threats to the president. 
 
 The only specific security concern mentioned was that agents and officers were told to bar a left-wing journalist from events at the summit and were given a flier with the journalist's photograph to keep him out, the law enforcement source said. 
 
 The Secret Service sent agents to Colombia to interview the prostitutes who hooked up with the Americans to figure out if the women are under age, involved with terrorism or trafficking in illegal drugs, a lawmaker told NBC News' Luke Russert on Tuesday. 
 
 “They have all their IDs and are conducting an extensive background check to make sure they aren't affiliated with any narcotrafficking or terrorist group or that they could be minors,” Homeland Security chairman Rep. Peter King told Russert. “So far there is no security breach." 
 
 Former Secret Service agent Dan Bongino, who worked in the presidential protection division, shares his view of the scandal involving at least 11 Secret Service personnel and more than 5 military personnel. 
 
 King, who was briefed on the Colombia investigation by Sullivan, confirmed that there were 11 agents and 11 women. 
 
 "The investigation could take a while simply because of the amount of women involved,” King said. “Some are saying they were prostitutes and others say they weren't." 
 
 U.S. military officials told NBC News on Tuesday that 10 American servicemen also were under investigation. According to the officials that includes five Army soldiers, two Navy sailors, two Marines and one Air Force airman. 
 
 One military official says it appears that at least two of the service members were found with prostitutes in their hotel rooms, the same Hotel Caribe where the Secret Service detail stayed. 
 
 It's not clear whether any of the military members were in any way connected to the allegations involving members of the Secret Service at a Cartagena strip club. 
 
 It's also not yet clear whether any of the 10 will face criminal charges. 
 
 House and Senate lawmakers are also looking into the allegations. King told The Associated Press that his committee is devoting four investigators to the probe. 
 
 Meanwhile, one former Secret Service agent, Dan Bongino who is a Republican candidate for Congress in Maryland, told NBC News that in his 12 years at the agency he never saw anything like what is alleged to have taken place in Colombia. 
 
 “I’m not saying it’s never happened, but I never saw it.” Bongino said. He denied there was a culture of partying inside the agency. 
 
 Top US military officer: 'We let the boss down' over prostitute scandal 
 
 A decade ago, however, U.S. News and World Report published an investigative report detailing criminal activity and extreme partying as well as oversight problems. In one reported incident, members of Vice President Dick Cheney’s security detail got into a brawl outside a bar on a trip to the San Diego area. 
 
 New details about the Secret Service personnel alleged to have brought prostitutes to their hotel rooms have emerged, including reports that two of the 11 were supervisors. NBC's Kristen Welker reports. 
 
 As the agency sought to rebuild its image, other high-profile incidents with presidential protection brought more scrutiny. 
 
 In 2008, an Iraqi journalist threw shoes at President George W. Bush during a Baghdad visit. 
 
 And in November 2009 three people crashed a White House state dinner for Indian Prime Minister Manmohan Singh. Michaele and Tareq Salahi and Carlos Allen were able to get past Secret Security agents at the door and enter the party. 
 
 The Salahis even met Obama and had their picture taken with Vice President Joe Biden. In a January 2010 congressional hearing on the matter, the Salahis, who have since divorced, refused to testify, invoking their Fifth Amendment right against self-incrimination. 
 
 The prostitution scandal, however, has brought far more intense focus on the Secret Service and behavior by its agents and officers. 
 
 "This really is the biggest scandal in the history of the Secret Service," Ron Kessler, author of "In the President's Secret Service," told NBC News earlier this week. He said the agency's problems are deeply rooted. 
 
 "There's a culture in the Secret Service that's fostered by the management of just nodding, winking, favoritism," he said. "What the agency needs is an outside director who can come in, clean house, change the standards." 
 
 Michael Isikoff is NBC News' national investigative correspondent; Jim Miklaszewski is NBC News' chief Pentagon correspondent. NBC News Correspondent Luke Russert and msnbc.com reporter Jeff Black also contributed to this report. 
 
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– The Secret Service prostitution scandal that's threatening to overshadow the Summit of the Americas came to light after one agent refused to pay one of the women involved, reports the New York Daily News. “The agent said, ‘I don't owe you anything,’ but gave the woman some money,” says Rep. Peter King, who as head of the House Homeland Security Committee, has been briefed. The agents, part of an advance team that was supposed to secure President Obama's hotel, were caught with prostitutes in their hotel rooms, and the dispute caused a disturbance that got local police involved. “Number one, it is against basic ethics to go to a prostitute. Number two, it is incredibly embarrassing to the White House,” says one insider, who added that the agents' careers are probably over. “Yes, doubly good judgment there.” Eleven agents have been placed on leave in the incident, notes the AP, and another five military personnel have been accused of similar misconduct after violating curfew. None of the Secret Service agents involved were directly responsible for Obama's protection. A Secret Service rep has apologized "for any distraction."