CNN —  

A U.S. State Department official accused of soliciting sex from a minor is being held without bond on Wednesday night.

Daniel Rosen, an official in the State Department’s counterterrorism bureau, appeared in court Wednesday afternoon after his Tuesday arrest. Appearing before Magistrate Judge Renee Raymond, Rosen was still wearing blue plaid pajama pants, a green fleece with a charcoal winter jacket and boots that he was arrested in.

Rosen is charged with one count of use of a communications device to solicit a juvenile.

READ: State Dept. official accused of soliciting sex from a minor

An attorney for Rosen asked that his client be released on $25,000 bond, arguing that Rosen has no prior criminal record. But Raymond denied the request “given the gravity of the charge.”

The 44-year-old is expected to be extradited to Fairfax County Adult Detention Center in Virginia by Monday.

Fairfax County Police said the charge stemmed from “an online investigation regarding exchanges he had with a detective.”

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 Washington home on Tuesday he was arrested.

Police said the State Department was notified after the arrest. On his Linkedin profile, Rosen stated that he has worked at the agency since August 2008 and currently serves as director of Counterterrorism Plans, Program and Policy and is “responsible for all CT Bureau strategic planning, policy planning, program and budget planning and oversight, and legislative relations and interaction.”

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

“For issues related to department personnel and for privacy reasons, we are not able to confirm the identity of the individual or specific charges,” Psaki said. “His security clearance will be suspended, and he will be put on administrative leave while this proceeds to its end through any judicial process.”

After the judge denied Rosen bond for what she called a “very, very serious offense,” he turned to acknowledge who appeared to be friends and family in the courtroom.