ROXBURY -- The assistant principal of Roxbury High School has been accused of sexually touching a teenager who lived with him on a part-time basis, authorities said.

Roger Schneider, 55, of Rockaway Township, was arrested Saturday on charges of second-degree endangering the welfare of a child and third-degree aggravated sexual contact following an investigation by the county prosecutor's office and township police, Morris County Prosecutor Fredric M. Knapp and Rockaway Township Officer-in-Charge Martin McParland, Jr. said in a news release.

The teenager, whose identity and gender were not released, told a third party this past week Schneider had sexual contact with the teen, Knapp and McParland said.

The teenager, who was 15 years old at the time of the alleged incidents, resided at Schneider's home on a part-time basis between Aug. 2013 and Jan. 2015, they said. Schneider was acting in loco parentis to the teen with the parents' consent while residing in the Rockaway Township home, they said.

When interviewed Friday, Schneider admitted to making contact with the teen's "intimate parts," Knapp and McParland said.

The teen later disclosed to police "acts of sexual contact between Schneider's hand and (the teen's) genitals," they said.

The teen is not a student in the Roxbury school district, they said.

Bail was set at $100,000 with no 10-percent option, they said. He's also been ordered to have no contact with the teenager and to surrender any firearms.

Knapp and McParland said the investigation remains active and ongoing, and that no other information would be released at this time.

Messages placed to the Roxbury School District Saturday afternoon have not yet been returned.

Justin Zaremba may be reached at jzaremba@njadvancemedia.com. Follow him on Twitter @JustinZarembaNJ. Find NJ.com on Facebook.