(Via CNN) Washington – A U.S. State Department official has arrested on suspicion of soliciting sex from a minor.

Daniel Rosen [pictured left at 2012 terrorism conference] was arrested Tuesday at his Washington DC home, police in Fairfax County, Virginia, said.

Authorities say Rosen had been communicating online with a female detective from the county’s child exploitation unit. The officer had been posing as a minor. When the detective arrived at Rosen’s home, he was arrested.

Police said the State Department was notified after the arrest. Rosen was taken to a Washington jail and will be extradited to Fairfax County.

State Department spokeswoman Jen Psaki said she is aware of the case but did not identify the arrested. (read more)