Police have launched a major crackdown on gangs of under-age drinkers plaguing Brighton and Hove at night.

In the first of a series of high-profile police operations, officers stopped more than 50 youths in Patcham and Woodingdean and confiscated a large amount of alcohol.

Police patrols were in Preston Park, Brighton, on Friday, shadowing gangs of teenagers, including 13-year-old girls, running back and forward across the A23.

The 25-week crackdown, called Operation Athlete, was launched amid increasing public concern about large gangs which are hanging around in streets and parks drinking alcohol.

Inspector Steve Curry said: "Friday was very successful. We had one incident reported to us and that youth was dealt with and taken home.

"We stopped 26 people in Patcham and a significant number in Woodingdean, around the tennis courts and bowling club where there have been problems.

"We want to send out a message it's unacceptable and we will deal with people."

Insp Curry said the tougher stance was aimed at 15 to 17-year-olds drinking at night.

It was a multi-agency operation with youth workers, councillors and residents getting involved to try and find ways to stop anti-social behaviour.

He said: "It is to combat anti-social behaviour we see in our neighbourhood that's affecting the quality of life for residents. Where appropriate, alcohol will be taken from young people, they will be taken home, parents will be informed and, in some cases, we will get video footage of the behaviour to show them.

"We are targeting the ring leaders. If we can't curb their behaviour, then we will be going to the courts to get anti-social behaviour orders.

"We are working with local action teams in the neighbourhood to make a difference and deliver a strategy that's wider than just police enforcement.

"We want to provide a holistic solution by working together. Part of that is coercion and enforcement by the police but there have to be other strategies in terms of youth services."

Councillor Geoffrey Theobald, who accompanied the police operation on Friday night, said: "I am hopeful it will work. I think it's important to send a message anti-social behaviour will not be tolerated."