OKLAHOMA CITY (Reuters) - The Oklahoma state capitol was closed on Wednesday after four suspicious letters containing powder arrived at the building, police said.
There had been no immediate reports of anyone being sickened by the powder, police said.
"We do have the capital closed at this time," said Captain Paul Timmons, a spokesman for the Oklahoma Department of Public Safety.
"The bomb squad is over here doing their thing, so we haven't been able to get too much more information at this time," he said.
Local news reports said one of the four letters was sent to the office of Governor Mary Fallin.
(Reporting by Heide Brandes in Oklahoma City; Writing by Jon Herskovitz; Editing by Eric Walsh and Peter Cooney)