The suspect on the left is wanted in connection with a rape in Welwyn Garden City on 29/07/13.
The five men caught on CCTV (right) are wanted in connection with a robbery in Hitchin on 01/02/13.
For more information visit Crimestoppers here.
More top news
Cloud thickening tonight with rain spreading eastwards later.
A mixture of sunny spells and isolated showers this afternoon.
Police think that one of the men involved in last week's abduction attempt at RAF Marham was given a black eye.