A primary school caretaker has been jailed for possessing thousands of indecent images of children which were found in the school's store cupboard he was living in.

Gavin Clark had more than 2,000 images and films stored on his laptop, camera memory card and USB memory stick. Police found the material in an internal store cupboard at Eaton Primary School in Norwich, where Clark had been working, after a tip-off from his employers.

A number of the images found were classed as Level 5 - the highest classification, although Norfolk police insisted there is no evidence to suggest the offence involved any children at the school.

Detective contable Pippa Hinds, who led the investigation, said: "Clark abused the position of trust he had been given by using the premises to store items which contained offensive data.

"His sentencing should underline to others who are considering similar actions that the Constabulary will deal with any such offences pro actively and robustly."

The 41-year-old pleaded guilty to the 16 counts of possessing indecent imagery at Norwich Crown Court on 28 November and was jailed for 12 months on Wednesday.