GREENVILLE — State officials are testing a white powder found in a letter received by U.S. Sen. Lindsey Graham’s South Carolina office.

State Law Enforcement Division spokeswoman Jennifer Timmons said in an e-mail that agents went to Graham’s Greenville office on Thursday to retrieve the letter and substance.

Timmons says it doesn’t appear the substance is harmful. It has been sent to a state health department lab for analysis.

Graham spokesman Kevin Bishop told WIS-TV in Columbia that the senator was not in the office when the powder was found. He said the office was closed for much of Thursday, but reopened Friday.