A Secret Service agent was placed on administrative leave and is under investigation for allegedly sexually assaulting a female agent in late March, The Washington Post reported.

Xavier Morales, 48, had his gun and badge confiscated and was placed on a "do-not-admit list" last week after the unnamed employee said he made unwanted sexual advances towards her the night they returned from a party at a Washington D.C. restaurant.

"The Secret Service is an agency that demands that our employees conduct themselves with the highest level of integrity. These allegations as reported are very disturbing," Director Joseph P. Clancy told The Post.

"Any threats or violence that endangers our employees in the workplace is unacceptable and will not be tolerated."

Morales, who is the woman's boss, allegedly told her he loved her and wanted to sleep with her during the March 31 party at the Capitol City Brewing Company, unnamed officials with knowledge of the investigation told The Post. The party was in honor of Morales' promotion from manager in the security clearance division to head of the Secret Service's field office in Louisiana.

When they returned to the office, the woman said he tried kissing her and grabbed her arms when she pulled away, officials said. The two struggled for a moment until Morales freed her, the agent said.

The D.C. police sex crimes unit and a federal inspector general are now handling the probe into Morales, whose federal agent wife was also just promoted.

The incident is similar to another Secret Service fiasco last month involving two agents also returning from a party. The allegedly drunk agents drove their vehicle through a security barricade in the middle of a bomb threat investigation at the White House.

Morales declined to give the newspaper comment on the allegations.