PLAIN-clothes officers and CCTV were used by Gwent police and a council to net 22 youths during an anti-social behaviour crackdown.

At one point during a two-day operation in Markham, near Blackwood, officers stopped youths from playing rugby in the village square because motorists were forced to avoid them.

Police and Caerphilly council said the youngsters were drinking and "gathering in noisy groups".

As well as causing general disorder, they shouted at passers-by and even climbing on the roofs of bungalows and garages.

The officer in charge, Sergeant Michael Moyles, said the "most problematic" youths faced proceedings for anti-social behaviour orders (ASBO). Referrals for ASBOs were made on 22 youths and letters sent to parents. A referral is a written notice and is the first step towards an ASBO but does not necessarily mean one will be issued.

Plain-clothes officers collected evidence of anti-social behaviour while the council deployed a mobile CCTV unit during the recent operation.

There were also foot patrols, as well as special constables and council community safety wardens.

Sgt Moyles said: "I am delighted with the response to the operation and the results it achieved.

"These warnings will contribute towards evidence needed to obtain ASBOs against the most problematic youths. The operation will be repeated."

Inspector Mike Fleming, of Blackwood police station, said the operation was in response to community needs.

He said: "We will continue to monitor exactly what is happening and take positive and decisive action."