US Senator Susan Collins has said that "twenty or 21 foreign national women" were brought to the hotel in Colombia by US Secret Service agents and US military, according to Reuters.
Ms Collins was briefed by Secret Service director Mark Sullivan who said that US marines were allegedly involved.
More top news
Freezing temperatures, a biting wind and risk of snow into next week
Austerity and Brexit are dividing Britons and causing a "schism" in society, the Archbishop of Canterbury has warned.
A taxi driver has been suspended after inspectors found he was using a Costa Coffee lid as a fuel cap.