OKLAHOMA CITY (AP) - A bomb squad has been called to the federal building in downtown Oklahoma City after a man caused a disturbance at a security checkpoint.
Officials say the man left a briefcase and a threatening note at the building Wednesday afternoon. He was being questioned by police.
U.S. Deputy Marshal Kim Heath said the building was evacuated while the incident was investigated.
No evidence of an explosive device has been found.
The federal building opened in 2003 as a replacement for the Alfred P. Murrah Federal Building that was destroyed in the 1995 Oklahoma City bombing.
The new building is just northwest of the former building.
(Copyright 2009 by The Associated Press. All Rights Reserved.)
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