Two men arrested yesterday (July 28) in connection with the attempted murder of Derry man Paul McCauley have been released.
Police say a 21-year-old man has been released on police bail, pending further enquiries while a 36-year-old has been released unconditionally.
Mr McCauley has been in a coma since he was attacked in the early hours of July 16, 2006.
He was attending a summer BBQ at the rear of a house in Chapel Road.
At 3.20am only he and two others remained when a group of up to 15 people came out of bushes and attacked them. After the assault the group made off in the direction of Irish Street.
The attack left Paul requiring round-the-clock care and unable to communicate with his family, except by blinking his eyes occasionally.
To date only one person has been convicted in connection with the attack. Daryl Proctor, from the Fountain, is currently serving a 12 year sentence for his part in the assault.
Three men arrested earlier this month in connection with the attack have since been released on bail pending further enquiries.