WATERTOWN, JEFFERSON CO. -- A Watertown man is accused of enticing a 15-year-old girl into performing sexual acts for him over the internet.

21-year-old Robert LaShure, of 812 Cooper Street, is charged with disseminating indecent materials to minors, use of a child in a sexual performance, stalking and endangering the welfare of a child.

Jefferson County Sheriff's deputies say it happened several times starting back in November 2010. They say LaShure used those incidents to threaten the girl into more sexual performances.

Investigators say he stalked her using the internet and other electronic devices. After being blocked from all of her accounts earlier this month, deputies say he started stalking and threatening her 13-year-old sister in an attempt to get the 15-year-old to start talking to him again.

LaShure was arraigned in the Town of Leray Court and sent to the Jefferson County Correctional Facility in lieu of $15,000 cash bail or $30,000 bond.

Any other possible victims are being urged to contact Sheriff's deputies.