The number of trams damaged by vandals in New Addington has dramatically dropped, following a police crackdown.

In 2008, 12 trams were badly damaged by yobs chucking stones and missiles at the Addington Village, Fieldway, New Addington and King Henry's Drive stops, according to British Transport Police figures.

Windows were smashed and repairs were expensive, causing delays and cancellations.

But last year at the same stops, there were only three acts of serious vandalism and so far this year there have been none.

BTP Inspector Jack Ioannou, based at Croydon BTP station in Addiscombe Road, East Croydon, said the stone throwing, which typically occurs after school and during school holidays, had been cut because of regular patrols on trams and at stops.

A number of prolific offenders have also been arrested.

Insp Ioannou added: "We want to send a clear message to any youngsters who may think this is a bit of fun that this type of behaviour can have serious consequences.

"Not only can throwing stones and other missiles cause delays and cancellations to services, there is also the potential for a serious accident or injury to be caused to passengers and staff as a result of these offences.

"We recognise that there is more work to be done and will continue to target anyone who engages in this type of antisocial behaviour."

Central Parade resident Mick Dix, who uses the trams every day, welcomed the news.

He said: "When a tram is vandalised and the service gets cancelled, it causes a lot of hassle for everyone who relies on the transport.

"We need the trams here in New Addington, and when you have people chucking bricks through the window, not only could they really hurt someone, but it has a massive impact on everyone else.

"I have noticed more patrols, and it's good news that vandalism is down. I just hope this carries on in the school holidays, when it typically happens."

Fieldway resident Marilyn Smithies, secretary of the New Addington & Fieldway Neighbourhood Partnership, agreed a decrease in vandalism was excellent news.

She said: "Less vandalism will hopefully encourage more people to come to New Addington, which will have a good impact on local businesses.

"Police patrols also help reassure law-abiding citizens that troublemakers will be dealt with and puts people off causing trouble."

To report antisocial behaviour call British Transport Police on 0800 405040 or Crimestoppers anonymously on 0800 555 111.