A Texas sheriff’s deputy has been arrested for raping a child and soliciting a minor online.

Landon Slatter, 42, was arrested on Tuesday and “immediately”i submitted his resignation, the Montgomery County Sheriff’s Office said.

The sheriff’s office said more charges are anticipated.

The sheriff’s office said it was notfied in January by a parent that their 17-year-old son was being sexually abused and exploited by adult men online and that the abuse had begun when the boy was 14 or 15.

Investigators learned that Slatter was one of the abusers and that he had asked the boy for a sexual encounter while he was working. He was booked into the Montgomery County jail, where he was being held on a $100,000 bond.

“Upholding the trust and safety of our community is not just a responsibility, it is a duty we take seriously,” Montgomery County Sheriff Wesley Doolittle said in a statment. “The actions of one individual do not define the dedication and integrity of the men and women who serve honorably in this agency.”

The sheriff’s office said Slatter had been with the department for 15 years. The department did not say if any other men were involved.