A former Holton High School teacher who had a sexual relationship with a 15-year-old girl has lost his teaching license.

The Kansas State Board of Education on Tuesday revoked the license of 37-year-old Tad A. Hernandez, a former business instructor at Holton.

Hernandez pleaded no contest in August to charges of lewd and lascivious behavior and indecent solicitation of a child. He was sentenced to 60 days in jail and 66 months of probation. He had already agreed to surrender his license.

The Topeka Capital-Journal reports that during the September sentencing, the victim’s mother said Hernandez had exchanged more than 3,000 text messages with her daughter in a 30-day period.