ALEXANDRIA, Va. -- A youth sports coach in Arlington County who is also a past president of Virginia's American Civil Liberties Union chapter was arrested Friday and charged with receiving and possessing child pornography.

Charles Rust-Tierney, 51, of Arlington, made an initial appearance Friday in U.S. District Court in Alexandria and was detained pending a preliminary hearing Wednesday.

It was unclear Friday whether he had an attorney. A call to his home went unanswered.

A federal agent said in a sworn affidavit Friday that Rust-Tierney has subscribed to various child-pornography Web sites the past several years.

The affidavit states that Rust-Tierney also admitted to an agent Friday that he has downloaded videos and photos, which were found in a search of his home, from child porn sites.

Arlington police are continuing their investigation and seeking information from the public on the case.

Newsletters on the ACLU chapter's Web site indicate Rust-Tierney served as president from 2002 through 2005.