A fourth person has been arrested after a teenager was stabbed in Redbourn.

A boy in his late teens was taken to hospital with stab wounds after police were called at 2.37am on Thursday, May 31.

Four people were arrested in connection with the attack: a 52-year-old woman, a 56-year-old man and a 14 year-old-boy have been released on police bail, while a 28 year-old-man has been released with no further action.

Anyone with information or footage has been asked to contact police on 101 and quote Operation Spruce.

The boy is said to be in a stable condition.