A man airlifted to King's College hospital with a serious head injury following a charity pram race crash remains in a critical condition, police have confirmed.

The 52-year-old, named as 'Titch' by friends on social media, suffered a serious head injury and was flown to London after falling during the popular event in Sutton Valence on New Year's Day.

He was in a three-man crew wearing flying jackets whose trike, styled like a Spitfire, tipped on its side at around 12.30pm in front of crowds which had gathered in the High Street to watch the spectacle.

Each team had to complete two laps of the loop road in the village, including "pit stops" at the pubs along the way.

But, shortly after 12.30pm and during the second race, emergency services were called to Sutton Valence High Street after a man fell from one of the prams.

One eye witness said: "Three men dressed in RAF costumes and a pram designed like an aeroplane came down the street at speed before the pram flipped over.

"It literally happened a few feet in front of me; they fell at my feet.

"It all happened so quickly and then I saw blood on the floor."

The witness added that the event's first aid tent was next to where the man fell, so people were with him immediately.

It is believed off-duty doctors and a paramedic were also at the scene.

"The three RAF guys were going a lot quicker than the pram in front of them. As soon as I saw them coming at that speed I thought there was going to be a crash, but I didn't think it was going to be that bad," the witness added.

Kent Police confirmed officers remain at the scene to carry out enquiries in the incident.

The event, which is organised by The Queen's Head Oddfellows Fund, is held every year to raise money for charity.