A teenage girl has reported being grabbed from behind and sexually assaulted in Braintree, Essex.

The incident happened after the girl was followed by a white man, aged between 17 and 19, in Fisher Field.

The victim cannot remember the exact date of the attack but believes it was at about 6.30pm one evening on a week day between January 19 and 30.

Before the incident, she had seen the suspect, who wore dark clothing and a hooded top, with two other males who had been smoking nearby.

Anyone with information is asked to contact Pc Leila Sandford at Braintree police station on 101, or contact Crimestoppers anonymously on 0800 555111 or online at crimestoppers-uk.org.