A woman has been sexually assaulted in Letchworth by a man who had just made advances towards a 15-year-old girl – and police have now released CCTV images in an appeal to the public.

A man approached the 15-year-old in Hillshott at 10.30am on Wednesday, July 13, and asked her to go with him.

After the teenager refused, he ran off to Broughton Hill, where he put his arm around a 25-year-old woman and kissed her face. He then fled towards Pixmore Avenue.

Police would like to speak to the man pictured as he may have information about the incidents that could assist their enquiries.

Anyone who recognises him, or witnessed these incidents, is asked to call police on 101 quoting crime reference G2/16/1346.

Alternatively contact Crimestoppers anonymously on 0800 555 111, or use their anonymous online form at crimestoppers-uk.org.