The police have revealed plans to crack down on those taking part in "reckless" Halloween motorcycle events, claiming they put "themselves and members of the public at great risk".
The Met Police said that in the past two years, officers have responded to "ride out" events in which large numbers of motorcyclists gather across different locations in London.
Last year's event saw hundreds of masked bikers take the streets of London with bikers reportedly throwing firecrackers at police and people's windows in scenes of "utter carnage".
Police said the intent and action of these groups is to cause disruption and antisocial behaviour - driving recklessly on the wrong side of the road, through red lights and across pavements.
Many members of these groups allegedly use stolen motorcycles and are affiliated with the group 'UK Bike Life'.
A spokesman for the Met Police said: "In the past, these groups have caused criminal damage to petrol stations and put themselves and members of the public at great risk by driving recklessly in large groups through the streets of London.
"We know that some people may see the event advertised and think they are joining like-minded enthusiasts on a lawful ride. This is not the case. They drive ruthlessly and carry out stunts on the road.
"Officers will be out across London throughout the Halloween period and will deploy a number of police tactics to prevent riders from driving dangerously.
"We intend to prevent disorder and crime caused by riders and we will be dealing with offenders. Any group or individuals who cause disruption will be arrested."
