A young boy has suffered serious injuries to his leg in a crash on the M2.

The motorway was closed in both directions and the air ambulance was called after the accident involving a 4x4 carrying four children.

A police spokeswoman said officers were sent to Junction 3 at 2.50pm to reports the vehicle had overturned on the London-bound carriageway.

Three ambulances, a responder car and the air ambulance were called, and a seven-year-old boy was taken by road to King's College Hospital in south London with a fractured leg.

He was accompanied by a man who suffered minor injuries in the crash.

The three other children in the 4x4 were not seriously hurt.

The motorway was fully reopened at 5pm, but long delays remain in the area.

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