FBI raids House of Representatives office building

The Federal Bureau of Investigation confirmed the unusual raid at the Rayburn House Office Building on Washington's Capitol Hill but would not say whose office was searched.

"Agents of the FBI's Washington field office executed a search warrant this evening at Rayburn at approximately 7:15," Debbie Weierman, a spokeswoman for the FBI's Washington field office, said.

Weierman said the search warrant was sealed and she could not confirm whose office was being searched.

But two lawmakers under investigation in separate bribery scandals have offices in the Rayburn building -- Jefferson and Ohio Republican Rep. Bob Ney.

Calls to Jefferson's and Ney's offices were not answered.

Jefferson has maintained his innocence, but a former staffer and a Kentucky businessman have pleaded guilty to bribing him in connection with an African telecommunications venture.