An aluminium gate has been stolen from the car park outside Shepeau Stow Primary School.
It was reported missing after pupils and staff arrived at the school on Tuesday when the car park had to be left unsecured.
Executive headteacher Alison Buddle said: “The gate was there on Monday evening but when we came on Tuesday morning, it was gone.
“It was a large gate and we can’t lock our car park which has been used by people hanging around in the evenings who have nowhere else to go.”
Anyone with information should call 101, quoting incident 71 of November 4.