HIGHLANDS RANCH, Colo. (CBS4) – A 19-year-old from Highlands Ranch has been arrested for possessing child pornography.

The Douglas County Sheriff’s Office said they arrested Zachary Zelenak for sexual exploitation of a child.

Police began investigating Zelenak in November.

“At this time it is alleged that Zelenak was downloading and possessing child pornography,” Sgt. Ron Hanavan said in a statement.

Police obtained a search warrant and numerous computers were recovered. Zelenak was arrested on Wednesday.

Zelenak is being held on a $50,000 bond.