District of Columbia police say they have arrested a Secret Service officer during a prostitution sting.

WUSA-TV reports D.C. police Inspector Brian Bray says his squad was conducting a prostitution sting around 11th and K streets in northwest Washington early Saturday. He says a marked Secret Service Uniformed Division patrol car pulled up to speak with an undercover female officer posing as a prostitute.

The Secret Service sergeant, who was in uniform, allegedly inquired what sex acts the undercover officer would perform. They agreed on a price of $20, and he drove to meet her. But then D.C. police arrested and charged him with solicitation for the propose of prostitution.

Darrin Blackford, a Secret Service spokesman, says the agency's internal affairs division is investigating the matter. He says the officer, whose name was not released, has been placed on administrative leave pending the outcome of the investigation.