Traffic is queueing on the M25 following a crash on the QEII at the Dartford Crossing.
Highways England said there has been a crash on the bridge leading to lanes being blocked.
Drivers are being warned to expect delays.
Emergency services are on the scene and there is congestion stretching back to junction 30.
The road has now been cleared and traffic is easing.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here