A section of motorway is expected to be closed for several hours following a multi-vehicle pile-up this afternoon.
The M1 has been closed in both directions between J14 (Milton Keynes central) and J15 (Northampton) after a lorry crossed the carriageway and smashed into several other vehicles.
Earlier on, an air ambulance landed on the carriageway to transport a casualty to hospital.
The road is not expected to return to normal conditions until approximately 2am.
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