Humberside Police were called at around 7.10am today with reports of a burglary at Clifton Primary School, Burslem Street, Hull.
They received reports that a man was found in the building by the school caretaker.
The suspect is described as early 20s, around 6ft tall, of skinny build wearing a parka style jacket. He spoke with a Hull accent.
Police are in attendance and enquiries are ongoing.
Anyone with any information is asked to call 101 quoting log 89 of 12/04/18. Or you can contact Crimestoppers anonymously on 0800 555 111.