PITTSBURGH - The FBI seized documents Tuesday from the headquarters of the Pittsburgh Police Department.

Police spokeswoman Diane Richard said the FBI removed documents, but did not provide details of what was taken. Police Chief Nate Harper has been under scrutiny since a former friend of his was charged last year in connection with a bribery scheme on a contract to install radios and computers in police cars.

Last week it emerged that Harper helped form a private security consulting firm with a civilian clerk and three city officers, including one he promoted from sergeant to commander. - AP