THIEVES escaped with two bottles of nitrous oxide after they cut through a wire cage at the back of Droitwich Spa Hospital.
The incident took place between 5pm last Friday (July 3) and 7.20am on Monday (July 6).
The bottles were worth about £145 and £200 in damages were caused.
It is believed the thieves used something to cut a square hole in the mesh which protected the area where the bottles were stored.