Police are today hunting a sex pest who indecently exposed himself to a string of women.

The incidents happened around the Castle Park area of Colchester and are all believed to have involved the same man.

Police today released an e-fit of the suspect put together using the latest technology. The hi-tech system - designed to make images more accurate - is being used by Colchester police for the first time.

The first incident took place in broad daylight, near the archway between Castle Road and the Riverside estate. A woman saw the man carrying out an indecent act just after 2.30pm.

Less than two hours later, a man fitting the same description was spotted in an alley off West Stockwell Street.

A police spokesman said: "He was walking about with his trousers around his knees and exposing himself."

The suspect is believed to be in his early 20s. He is described as 6ft tall and skinny, and was wearing dark clothing.

Anyone with information about the incidents - which happened on January 3 but details of which have only just been released by police - should contact Sgt Allwood on 01206 762212 or Crimestoppers on 0800 555111.