A 33-year-old schoolteacher in Jajpur district was arrested on Wednesday on the charge of having physical union with a sex worker in the school office on Tuesday night. “Mohammad Naseem Khan, a teacher of Chandapur Primary School, under the Dharmasala police station, was caught red-handed by some locals when he was having sex with a woman in the school office on Tuesday night. Getting information, police rushed to the school and arrested him under various sections of the Prevention of Immoral Trafficking Act,” said Dharmasala Ps IIC Amitav Mohapatra.