Motorists stranded after a serious crash in Kent have got out of their cars and are walking around the dual carriageway.
An air ambulance has been called to the motorbike collision near Tonbridge this morning.
The A21 is closed in both directions bringing traffic to a standstill.
Drivers in the area have been warned to expect long delays.
Diversions have been put in place but for those already on the road there is nothing for them to do but sit - or stand - and wait.
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The crash has happened on the coastbound carriageway.
A police spokesman said: "The A21 is currently shut in both directions close to the junction for Tonbridge following an earlier collision involving a motorcyclist.
"Lengthy delays are expected. Where possible motorists are advised to seek alternative routes."
Highways England tweeted: "Expect long delays in area and consider alternative routes if poss.
"Coastbound side expected to remain closed for some time due to serious collision."
Several pictures posted on social media show bikers and other motorists mingling around the dual carriageway.
There is no indication when the road will reopen.
