A fourth person has been arrested in connection with an incident where a teenager was stabbed.

Police officers investigating an incident in Snatchup in Redbourn that happened in the early hours of May 31 have arrested a 16-year-old boy from Redbourn.

He has been arrested on suspicion of grievous bodily harm and remains in police custody.

The victim, in his late teens, is in hospital in a stable condition.

A 52-year-old woman, a 56-year-old man and a 14-year-old boy remain on police bail after they were arrested shortly after the incident.

Police are not seeking anyone else at this stage with the incident.