PHOTO: Speed Camera Blown Apart

A speed camera has been destroyed by a bomb planted on the main box. The blast sent shards of metal flying more than 50 feet into the air

Bomb disposal experts are investigating how the equipment on the A605 at Thrapston, Northamptonshire, was wrecked.

The incident is the latest in a series of deliberate attacks on speed cameras across the country, which has been blamed on frustrated motorists.

Dozens of cameras have been burned, toppled and driven into, but the A605 camera was believed to be the first that had been bombed.

A team from the Explosive Ordnance disposal unit has examined the site and forensic experts have also studied the debris.