Police are appealing for witnesses after a teenager was left with a serious head injury after being attacked in Slough.
The 16-year-old was assaulted on Wellesley Path, off Wellington Street, at around 20:40 BST on Friday.
He was taken to Wexham Park Hospital, where he remains in serious condition.
Det Insp Will Crowther said he believes there are "many witnesses" as the attack happened when it was still daylight and in a busy area of the Berkshire town.
The force was unable to release details of the offenders as the victim was in no condition to speak due to his injuries.