Shocking footage of boy bikers doing wheelies into oncoming traffic as they ride in groups through town centres has emerged.

Video posted on YouTube under the title A Riding Sesh After School shows the boys, who appear to be secondary school age, balancing on one leg without holding the handle-bars as they ride the wrong way up a one-way street.

The clip, uploaded by one of the bikers, who calls himself Realist Lennan, also captures the boys swerving from side to side narrowly missing drivers and parked cars.

A leading councillor at Medway Council described their actions as "dangerous".

In the video, the group seem to ride as close as they can to the cars and then twist away at the last minute.

One boy fell from his bike after attempting to do a wheelie in High Street, Chatham.

Another part of the video shows a young man riding through red lights on Corporation Street in Rochester.

One boy can be seen doing a wheelie on the wrong side of the road in The Brook in Chatham.

The video was posted three weeks ago and it is understood the matter was reported to police yesterday.

Medway Council portfolio holder for front line services Cllr Phil Filmer has expressed concern about the boys.

He said: "I've seen them and I'm thinking if they go out of control they might be injured or smash into a car.

"But I think we need to have a blitz on it and get the message across that it is dangerous and that damage could be done.

"I'm going to talk to the road safety team and see if we can do something about it."

Medway’s District Commander, Chief Inspector Robert Marsh said: "We want young people and teenagers to enjoy riding their bikes but they should do so in a safe and responsible way that is considerate of other road users and pedestrians.

"Officers have been made aware of a particular video showing cyclists performing stunts in Medway locations and while no injuries have been reported, some of the actions of those featured are of concern and in other circumstances could have ended very differently.

"There are purpose-built bike and skate parks that are designed as safe spaces for cyclists and skateboarders to experiment in without the risk of colliding with moving traffic and people going about their business.

"There are criminal offences associated with this kind of behaviour and anyone identified cycling in this anti-social manner will be dealt with as appropriate."