Underage drinkers had their alcohol confiscated during a police crackdown aimed at tackling antisocial behaviour.

Officers seized 50 bottles and cans over the first two days of the operation in Bicester - part of a North Oxfordshire-wide clampdown over half-term.

The 10-day campaign, called Operation Jaunt, will continue until Sunday, with extra officers targeting areas where under-18s are known to gather for drinking sessions.

Police say last weekend's haul included a worrying amount of spirits.

And they say parents of young drinkers can expect a call from officers.

Sgt Dave Hibbert, who is leading the operation, said: "Anything seized which was open was poured away there and then. Anything sealed was taken back to the police station where it will be kept until the end of the operation - and then poured away."

Last Friday night, officers seized 22 bottles and cans, including 15 cans of lager and two two-litre bottles of cider.

On Saturday, 28 bottles and cans were confiscated, including eight cans of lager, a bottle of Malibu, one full and two empty bottles of vodka, two empty bottles of wine, and an empty bottle of Champagne.

Sgt Hibbert said: "Youngsters are not only drinking beer and alcopops but also spirits, which can lead to them getting drunk very quickly and committing crime, or becoming a victim of crime if they are too drunk to look after themselves."

Officers issued 16 forms during the weekend, explaining why they had been stopped and searched. No arrests relating to underage drinking were made.

Areas where underage drinkers were found included Bicester Football Club, Garth Park, Launton Road and the Glory Farm estate.

PCSO Nadia Naeem said: "We tackled the underage drinking quite hard and we are pleased with the result."

The campaign is in line with the Government's plans to toughen up alcohol laws and prevent young people binge drinking.

Sgt Hibbert said officers would track down shops responsible for selling drink to underage youths and prosecute.

He added: "It will be interesting to see how much alcohol we get this weekend with the youngsters getting ready to go back to school. Many people may have house parties."