POLICE are cracking down on off-road biking in two Gwent communities after complaints from residents.

The neigbourhood policing team in Trevethin and Penygarn seized two vehicles and warned 11 other illegal bikers they face similar action if caught again.

Offenders must pay around £100 to retrieve their bikes from the police compound.

The operation follows one by Caerphilly council and police, at Wyllie Tip and Pontbren in Newbridge, in which 21 people were given written warnings and another 21 given referrals for anti-social behaviour orders.

In Trevethin and Penygarn a number of complaints have been received in recent months about nuisance motorbikes and other vehicles being ridden through the streets and on grassed areas.

Police said the Cold Barn Farm and Pontypool Park areas had been particular trouble spots. Some grassed areas had been "totally destroyed", according to officers.

Police believe youngsters received the off-road bikes as Christmas presents from parents who are unaware that by riding the bikes they are breaking the law.

Neighbourhood police Sergeant Mike Pheasant said: "The people riding these bikes are not only putting their lives in danger by riding recklessly, they are also causing distress to residents and ruining landscaped areas.

"These bikes can only be ridden in specific areas designed for off-road biking. Anywhere else and they are breaking the law."

People who ride the bikes on roads must comply with The Road Traffic Act 1988 and have documents, including a driving licence, insurance, MoT and tax.

Anyone without the necessary documentation cannot ride on what is classed as "common land".

The act also makes it illegal to ride or drive in a careless or inconsiderate manner.

PC Andy Cleaton, crime and disorder reduction officer, said parents and retailers selling mini-bikes and quad bikes had a responsibility to ensure youngsters were aware of the legal issues.

"It seems some people are selling these bikes and not giving parents the important information," he said.

Gwent Police are advising bikers to use legal clubs and stick to designated areas.

A list of local organisations can be found at www.offroad-motorsport.com.