An appeal has been launched to try and find a missing Knebworth woman.

Kathryn Ansell, known to her family and friends as Kat, was reported missing from her home in Park Lane on Monday, October 27.

The 21-year-old is described as white, with a slim build, green eyes and shoulder length straight brown hair.

She was last seen wearing jeans with the world ‘apple’ across the back, a blue beanie style hat and carrying a flowery brown and beige handbag.

Police are concerned for her welfare as she has not made contact with her family for some time.

They are asking Kat, or anyone who knows where she is, to contact Hertfordshire Constabulary non-emergency number 101.