A man remains critically ill in intensive care after being punched in the head following an argument a week ago.
The 19-year-old victim was out with friends in Bracknell on Friday 23 May when he got into an argument with another man, near the Ring.
The victim was punched, causing him to hit his head as he fell to the ground.
He was taken to the Royal Berkshire Hospital but was later transferred to a specialist hospital in Wimbledon, after his condition deteriorated.
Critical condition
He remains in a critical condition in intensive care this afternoon.
Detectives are appealing for witnesses to understand exactly what happened during the incident, which occurred between 2300 BST and midnight.
They are keen to speak to any taxi drivers, or any other motorists, who may have seen a group of men near to the Ring around the time of the incident.
A 19-year-old man has been arrested following the incident and was bailed pending further inquiries.