A man was assaulted and needed hospital treatment after a party involving hundreds of teenagers was broken up by police.

Hundreds of party goers were dispersed onto the streets by police who were forced to use megaphones to herd them away from the area.

Officers now say that an 18-year-old man was attacked in the aftermath of the party on Friday night.

A Sussex Police spokesman said: “Police were called to reports of a group of around 100 to 200 people causing anti-social behaviour following a party at an address in Poulters Lane, Worthing at 8.30pm on Friday, February 23.

“Officers were quickly on scene and a Section 34 Dispersal Order was authorised, giving officers and designated police staff the power to disperse individuals behaving in an anti-social manner.

“The party was dispersed, and the area was cleared.

“Following the incident, police received a report of an 18-year-old man who was assaulted at around 10.30pm in South Street, Tarring.

“As a result of his injuries, he was taken to hospital and enquiries are ongoing to identify the suspect.”

Two people were detained at the scene, but have since been de-arrested and released without charge.

Neighbours described seeing chaotic scenes in Worthing after hundreds of partygoers turned up to an address when the details were posted on Facebook.

Police officers from across the county descended on the party to break up celebrations and herded the teenagers away from the scene.

Lines of police cars blocked roads near the party while shepherding teenagers away from the area.

Witnesses to the assault or anyone with any information is asked to contact Sussex Police online or call 101 quoting serial 1474 of 23/02.