The motorway was closed in both directions yesterday afternoon (11th February) between junctions 5 and 6 near Sittingbourne after contractrs reported it. The motorway remains closed today.
The Highways Agency said that the sink hole measured 5m across by 2m wide. Engineers were joined on site by the emergency services including Kent Fire & Rescue Service. Cameras are being used to investigate the extent and nature of the hole.
The site was closely monitored overnight, whilst equipment and materials are being organised and deployed to site ready for contractors to start work as soon as it is safe to do so.
"The Highways Agency and its contractors are working hard to investigate the hole and the necessary repairs and will reopen lanes as soon as it is safe to do so,” it said in a statement.
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