A minibus was stolen from North Somercotes CE Primary School on Wednesday night.
The silver 16-seat Ford minibus (registration YT14 VME), which had the name of the school written on the side, was taken from the school site between 8pm and 10pm on February 22.
It was reportedly seen driving off from North Somercotes on the A1031 towards Grimsby.
Lincolnshire Police are investigating the theft.
If you have any information, contact police on 101 and quote incident number 28 of February 23.