Police are asking witnesses to come forward after a woman was flown to hospital with life-threatening injuries after a crash involving three cars.

Three adults and three children were involved in the incident on the A258 near Worth and Hacklinge, including one woman who was trapped and had to be freed by firefighters.

Police were called to the scene between Jubilee Road and Sholden New Road just before 1.30pm yesterday.

Scroll down for video

They were joined by paramedics, Helicopter Emergency Medical Service, and firefighters, who helped with removing the woman from her vehicle.

Three fire engines from Deal attended and used hydraulic rescue equipment, known as "jaws of life", to cut the woman free.

Now police are keen to hear from anyone who may have seen the crash.

Police spokesman Martin Very confirmed the air ambulance was called.

He said: "The woman who was trapped in her vehicle has been taken to a London hospital with serious injuries.

"Five other people were treated at a local hospital."

The road was closed for seven hours, but reopened just before 9pm.

SECAmb confirmed that ambulance crews attended in three cars and two ambulances along with the air ambulance.

Spokesman Rich Airey said: "One patient was airlifted to St George’s Hospital with potentially serious injuries.

"A woman aged in her 30s with an injury to her head and a woman aged in her 20s with an injury to her ankle were both assessed and treated at the scene before being taken to William Harvey Hospital.

"A number of young children were also assessed at the scene and taken with the women to hospital to be checked after being believed to have bumped their heads."

Angela Farrington, a nearby resident, said she was told the accident was a head-on collision.

VIDEO: The road remains closed after the crash

She wants to campaign for a solid white line so people can't overtake on the road.

She says she researched it years ago and it would cost only £50.

"If it cost £200 or £2,000 now, and it saved lives, it would be worth it."

Wayne Ager, a valeter at Elite Wash Centre, said he would support any measure to slow traffic down.

He said: "I work here most days and see cars and bikes streak up and down here.

"I'm surprised there aren't more accidents."

Officers from the serious collision investigation unit would like to hear from anyone who witnessed the collision or saw either vehicle in the moments leading up to it.

Call the appeal line on 01622 798538 quoting reference 20-0677 or emailsciu.td@kent.pnn.police.uk.