One of the prostitutes did have a dispute with the agents over payment, CNN confirmed.
A senior law enforcement official told Fox News the dispute started when employees at the hotel witnessed apparent inappropriate behavior by at least one of the Secret Service agents.
According to the official,
a hotel employee confronted at least one agent to demand he pay extra money for having an overnight "guest" in his room -- allegedly a prostitute. The agent balked, which touched off the confrontation that forced diplomatic intervention.