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Traffic is queuing on the M25 as shoppers head to the Boxing Day sales.
There are currently long waits anticlockwise at the Darenth Interchange, near Dartford.
Congestion is building from the Dartford Crossing at Junctions 1A and 1B all the way back to Swanley.
Highways England has informed motorists to expect delays.
The government-owned company has urged football fans travelling for Boxing Day matches to check for updates and ensure they have enough fuel to reach their destination.
This includes Gillingham fans who will be making their way to Ipswich for today's game via the Crossing.
Shoppers will also be using the bridge to get to and from Lakeside and Bluewater shopping centres as they look for bargains.
A grandmother sparked huge debate earlier this month when she called for Bluewater to close on Boxing Day.
Pensioner Gwen Tripp says the shopping centre has blighted surrounding homes and roads with traffic and pollution ever since it was built.
The 88-year-old ex Swanscombe and Greenhithe parish councillor wrote to the management team in November asking them to show some seasonal goodwill but it has remained open today despite this plea.
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