London - Police in the UK are planning to use a drone to catch speeding motorists for the first time.
Scotland Yard is testing the technology on major routes into London later this month to help reduce deaths and injuries on roads.
A specialist operator will review aerial footage from the device, which also has night vision capability, and will be able to direct a police car to stop offenders.
More than 160 motorists have been caught speeding in the capital over the past five weeks - some at up to 127mph (204km/h).
Police say drones can be deployed at high altitudes so they are not detected or closer to the ground so they are visible to motorists and act as a deterrent.