A man waving a gun near the Ethiopian Embassy in Washington was arrested by U.S. Secret Service officers on Sept. 29. There were no reported injuries. (Ethiopian Satellite Television)

A 46-year-old security attache for the Ethio­pian Embassy, whom authorities charged in connection with a Sept. 29 shooting near the building, has left the country, officials said.
A spokesman for the U.S. Attorney’s Office said the attache, Solomon Tadesse G. Silasse, was charged with assault with intent to kill while armed in connection with a shooting outside the embassy on International Drive NW.
Bill Miller, a spokesman for the U.S. Attorney’s Office, said Silasse has diplomatic immunity. Jen Psaki, a spokeswoman for the State Department, said authorities requested a waiver of immunity to prosecute Silasse, but the request was denied.
Psaki, who spoke about the incident during a news briefing Thursday, said Silasse left the country. She said the State Department requires the diplomat to leave the United States if the government of the diplomatic waiver declines to waive immunity.
Secret Service officers took a suspect into custody shortly after a 12:15 p.m. report of shots fired outside the embassy. No one was injured, authorities said.

Further details about the shooting were not released.

Julie Zauzmer contributed to this report.