OKLAHOMA CITY — The offices of Oklahoma's governor and lieutentant governor were temporarily evacuated Monday after a man threw a package onto an X-ray machine at a security checkpoint on the east side of the state Capitol.

The Oklahoma Highway Patrol, which provides security at the building, described the situation as a bomb threat.

The Oklahoman newspaper said a man tried to run into the building and managed to throw a package on the X-ray machine that scans packages and briefcases. An OHP trooper who would give only his badge number, 1427, said several offices, including those of Gov. Brad Henry and Lt. Gov. Jari Askins, were cleared for a time.

It wasn't immediately clear whether the man was detained.