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A hapless burglar has been caught on CCTV appearing to knock himself out as he tried to steal from a hospital. 

The footage shows two men in Larkswood Centre at Thorpe Coombe Hospital in Forest Road, Walthamstow. 

One jumps up in an attempt to access what appears to be a loft space. 

He is seen swinging as he attempts to generate upward momentum, but loses his grip and falls to the floor flat on his back. 

The man lies motionless for a few seconds, having appeared to hit his head on the ground and knocked himself out. 

The burglar then slowly sits up looking dazed and holding his head as his accomplice goes to his aid. 

He eventually stands up. 

Police later found blood left at the scene. 

The incident took place at 2.20am on February 19, but the footage has only just been released by police.  

Anyone with information is asked to call police on 101 quoting reference 4903453/15 or call Crimestoppers anonymously on 0800 555 111.