S.C. Governor Mark Sanford became one of at least nine governors to receive a fake anthrax letter this morning, sources tell FITS.

The letter containing a “suspicious white powder” was discovered by Leslie Sims, a staffer in the governor’s correspondence office. Sims did not open the letter, but immediately turned it over to officials with the State Law Enforcement Division (SLED).

The Wade Hampton building – which houses the governor’s correspondence office – was evacuated after the letter was discovered, and hazmat teams poured in to check for contamination.

The discovery did not interrupt a meeting of the State Budget and Control Board in an adjoining office, however, although staffers from the Wade Hampton building have been moved to the State House as a precaution.

The letter contained “bleached flour,” according to sources investigating the matter, and was discovered at around 10:30 a.m.

Eight other governors have received similar letters this week, according to published reports, including Alaska Gov. Sarah Palin.