Reporter Ishbel Matheson: "The cause of the violence is unclear, but there have been suggestions of a drugs vendetta"

A fight had apparently broken out between Asian youths on The Terriers estate in High Wycombe. As the ambulances carried away the injured, up to three police helicopters circled above.

A hand gun was later recovered from near the scene of the violence but no shots were fired. Witnesses also said they saw baseball bats and an axe.

A Thames Valley police spokesman said: "I am unable to say what the condition of the injured is at this stage.

"All the injured have been taken to hospital by ambulance and we are interviewing a number of people on the estate to see what happened."

A spokesman for the Buckinghamshire ambulance service said a maximum of seven people had been injured.

He added: "The injured people have suffered knife wounds, we have no reports of gunshot injuries.

"We understand it is the result of some sort of family feud involving a number of people of Asian origin."

Police arrested 16 people after the disturbance.

Sean Wilson, 34, who lives on the estate, said: "Everything is very chaotic, there is a large number of armed police looking like they are waiting to go in.

"The helicopters have been circling around for the last two hours. People are very surprised that something like this is happening.