There is heavy traffic near the Dartford Crossing this morning following an earlier accident and a car fire.
One tunnel heading into Essex is currently closed due to a crash, causing traffic to stretch back to junction 2.
Highways England said the east bore tunnel is closed and traffic officers are working at the scene to clear the incident.
There are currently delays of about 15 minutes.
UPDATE:
The tunnel has reopened and traffic is now moving - however there are still delays due to a car fire
Lanes three and four are closed while emergency services recover the car, with lane one coned off just afterwards.
The right hand tunnel of the Dartford Tunnel has reopened.
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