A married teacher was caught having sex with his model lover in a classroom at a top Catholic private school. Tutor Colin Turnbull, 69, was found in a 'compromised position' with Rozina Khanim by a governor at the £13,000-a-year independent Priory School in Edgbaston, Birmingham. The fee-paying school's facilities manager Kevin Bird walked in on the pair while they were engaged in a sex act during an entrance exam day. Colin Turnbull (left), 69, was caught having sex with 'model' Rozina Khanim (pictured left and right) in a classroom at a £13,000-a-year Catholic private school in Birmingham . Caught: Mr Turnbull, 69, was found in a 'compromised position' with Ms Khanim by a governor at the school . The school was said to be packed with pupils and parents when Mr Turnbull and 39-year-old Ms Khanim - who describes herself as a model - were walked in on. The teacher has worked at the school for nine years, hiring out a room to offer private tuition to pupils looking to pass the 11+, The Mirror reported. Mr Turnbull has not commented on the tryst, but the school confirmed senior staff had told him to 'never return'. A school spokeswoman said: 'Once Mr Turnbull's behaviour was discovered by the school's facilities manager, he promptly informed the assistant headteacher. 'Mr Turnbull was challenged; he fully admitted improper behaviour and was then instructed by the assistant headteacher to leave the school site immediately and to not return.' She added that the teacher was not directly employed by the school but he did hire out the classroom for tuition. 'As far as the school is concerned, while behaviour of the sort alleged is wholly unacceptable in any circumstances, we understand from the advice taken from social services that Mr Turnbull had not engaged in any illegal activity. The Priory School (pictured) was said to be packed with pupils and parents when Mr Turnbull and Ms Khanim - who describes herself as a model - were walked in on . Elite: The independent Catholic school charges up to £13,000 a year in fees for students to attend . 'There was no pupil involved, the incident was between Mr Turnbull and an adult female,' she added. School regulator Ofsted, Birmingham City Council and the Department for Education were all informed of the incident. A Department for Education spokesman said: 'Independent schools must adhere to the Independent School Standards. Any suggestion that schools are not doing so will be investigated.' Sources close to the school, however, said Mr Turnbull had been allowed to 'leave by the back door' and were angered that he would be able to continue teaching. Ms Khanim declined to comment but told the Birmingham Mail: 'That's not how it all happened.' The Priory School is attended by around 400 pupils, from 'Nursery and Poppets' classes up until sixth form. It charges fees of up to £12,870 a year for its most senior students. On the school's website, its headmaster Jonathan Cramb says 'knowing what is right and wrong' allows teachers to get on with providing an education for pupils. More than 80 per cent of students got five GCSEs graded A* to C last year, well above the national average.
Colin Turnbull was caught having sex in a classroom at a Catholic school .
Teacher and model lover were walked in on by private school's governor .
He has been told to 'never return' to the £13,000-a-year Birmingham school .
Priory School was packed with pupils and parents for entrance exam day .