Platte County High School’s principal was caught up in a Kansas City prostitution sting and has been charged with patronizing prostitution.

Dr. Martin cited “unforeseen personal reasons” for his resignation Monday.

Kansas City police issued a citation after Martin allegedly responded to an ad on backpage.com.

Investigators say Martin called the phone number, met up with a female officer at a motel near Liberty, and agreed to pay $150 for sex.

In the wake of Martin’s resignation, long time Assistant Principal Alan Bunch was named the interim principal for the remainder of the 2012-2013 school year.