Police say off-road motorcycles and quad bikes are a “constant issue” in the Tyersal area of Bradford.

Officers said many of the vehicles were not road-legal and riders often did not wear helmets.

Now police are urging residents to come forward to identify the culprits.

A police spokesman said: “These unregistered, untaxed and uninsured vehicles are not only a major nuisance to residents, they are highly dangerous.”