A MAN suspected of being involved in an horrific attack at a Luas stop has undergone brain surgery for injuries he received.
Two more suspects have been arrested in relation to the savage incident where a man was stabbed at the Miltown stop on Sunday.
There are fears that the suspect who underwent surgery - a man who in his 20s from Rathmines - has been left with permanent brain damage.
He is still technically in garda custody despite being in Beaumont Hospital following the operation on Tuesday morning.
The arrests on Tuesday of two men with whom he was allegedly fighting means that four people in total have been arrested over the violent incident.
The duo who were arrested on Tuesday were brought to Rathmines and Terenure garda stations before being released without charge later that night.
A fifth man, who was stabbed during the fight, has since been released from St Vincent's Hospital.
He has not been arrested in relation to the brawl but gardai say he could have been killed had it not been for the intervention of Luas security workers.
He is a man aged in his 20s with an address in Blessington, Co Wicklow. He owes his life to the two security guards who came to his rescue, officers said.
The two Luas security guards detained two suspects until gardai arrived, despite being pepper-sprayed and one guard receiving a stab wound to the leg.
The injured man received injuries to his neck, back and leg when he and two of his associates were singled out by the two attackers shortly before 8pm. He later required over 30 stitches for his injuries.
The savage fight is the subject of both a garda investigation and one from the Garda Siochana Ombudsman Commission (GSOC).
The watchdog is involved because the suspect who underwent brain surgery was hospitalised after falling ill while in custody in Rathmines Garda Station.