BOISE, Idaho -

A grand jury has indicted a Caldwell man on enticement and lewd conduct charges after prosecutors said he used Facebook to try to lure young teens into sex.

The Ada County Sheriff's office announced the indictment of 20-year-old Alex E. Rangel on Tuesday.

Prosecutors say Rangel is charged with lewd conduct because they believe he sexually abused a 14-year-old girl he met over the Internet. He's charged with enticement of children because prosecutors say he used Facebook to try to entice another young teen.

Detectives are trying to track down other girls who they say may have had contact with Rangel through Facebook. Rangel is currently being held in the Canyon County jail on a separate enticement charge.

He has not yet entered a plea in the Ada County case.