A Stephens City resident and former Federal Emergency Management Agency employee faces child pornography charges.

Law enforcement on Thursday arrested Jonathan Derek Riley at his mother’s Stephens City home where he resides, said Investigator Jason Killian, of the Northern Virginia/Washington D.C. Internet Crimes against Children Task Force.

Riley has been charged with five counts of possession of child pornography, according to Loudoun County public court records.

Riley worked for FEMA at its Mount Weather location. An inspection of his computer when he was let go found that Riley was viewing child pornography on his work computer. The Department of Homeland Security office of Inspector General was contacted, Killian said. FEMA is part of the Department of Homeland Security.

A search warrant of his home on Thursday  found even more images on his personal computer and flash drives, Killian said.

“We knew we would find something but we did not expect the amount we found,” Killian said. “It was quite a bit.”

Killian, who did not have his case file with him, could not say how much they found.

Riley was not on the radar of the task force until they were contacted by Homeland Security.

Authorities continue to investigate the matter.

Riley is held at the Loudoun County jail without bond.

A phone call to the defense attorney listed on his court case was not returned.