An overturned lorry has led to big delays on the M1 Northbound in Milton Keynes this evening.
Traffic is down to just one lane northbound between J14 at Milton Keynes and J15 at Northampton following the incident.
Thames Valley Police are currently at the scene alongside officials from Highways England.
Delays of up to two hours are being reported, with motorists told to seek an alternative route if possible.
Highways England say they expect traffic to return to normal at around 8.30pm, but this is subject to change.
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