The chief of staff for Sen. Lamar Alexander (R-Tenn.) is being investigated over allegations of child pornography, the senator said Wednesday.

Republican Senator Lamar Alexander Chief of Staff Ryan Loskarn Under Investigation for Child Porn

Sen. Lamar Alexander (R-Tenn.) said his chief of staff is being investigated over allegations of child pornography. (Getty Images/Andrew Burton)

“I was just informed by the United States Senate legal counsel’s office that law enforcement agents are conducting a search of the personal residence of Ryan Loskarn, the chief of staff of my Washington, D.C., office regarding allegations involving child pornography,” Alexander said in a statement. “I am stunned, surprised and disappointed by what I have learned. Based on this information, I immediately placed Mr. Loskarn on administrative leave without pay. The office is fully cooperating with the investigation.”

Loskarn has been Alexander’s chief of staff since January 2012, according to his LinkedIn profile, and previously served as staff director for the Senate Republican Conference. He also worked for Reps. Marsha Blackburn (R-Tenn.) and Wally Herger (R-Calif.).