A 36-year-old man from Kent has died after a four-car crash and his young son remains in a critical condition.

The accident happened at 11.11am on the A267 Tunbridge Wells Road, just over the border in East Sussex.

This evening, Sussex Police confirmed a man from Dartford, who had been driving a blue Ford Fiesta, died at the scene.

His two-year-old son suffered serious head injuries and was airlifted to King’s College Hospital, London, where he remains in a critical condition.

The accident involved the Fiesta, a white Renault Master, a silver Toyota Estima and a silver or grey Honda car which failed to stop at the scene.

The road remained closed for more than nine hours, reopening at about 8.30pm.

Police, the South East Coast Ambulance Service and the Kent, Surrey and Sussex air ambulance are all understood to have attended.

"We would like to thank the public for their patience and understanding while we carried out vital investigative work at the scene."

Sussex Police says its officers are particularly keen to hear from the driver of the Honda.

Police are urging any witnesses – or anyone who may have captured what happened on dashcam footage – to email collision.appeal@sussex.pnn.police.uk, quoting "Operation Utility".

A police spokesman added: "We would like to thank the public for their patience and understanding while we carried out vital investigative work at the scene."

An ambulance service spokesman had earlier said: "I can confirm our attendance at the scene, along with the air ambulance service, following reports of a serious collision."

An air ambulance spokesman confirmed its staff had been in attendance.

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Read more: All the latest news from Tunbridge Wells