Aerial footage of huge queues stretched down the Ashford, Kent end of Britain's Operation Stack response to the Calais migrant crisis.

The video, shot from an aircraft above, shows the M20 motorway completely gridlocked - a situation expected to last for several days and causing knock-on transport chaos locally.

Operation Stack is the procedure used by police when the UK to France crossing is severely disrupted and essentially turns part of the motorway network into a static car park to reduce strain.

Aerial footage of huge queues stretched down the Ashford, Kent end of Britain's Operation Stack response to the Calais migrant crisis.

The video, shot from an aircraft above, shows the M20 motorway completely gridlocked - a situation expected to last for several days and causing knock-on transport chaos locally.

Operation Stack is the procedure used by police when the UK to France crossing is severely disrupted and essentially turns part of the motorway network into a static car park to reduce strain.