 The stabbing happened outside a bar in Belfast |
Three men arrested in connection with the fatal stabbing of a Belfast man have been released without charge. One man is still being questioned about withholding information concerning the stabbing of Robert McCartney.
Mr McCartney died following an incident in the city at about 2300 GMT on Sunday.
Earlier on Wednesday, police released three men, including a senior republican, who had been detained following the attack.
Mr McCartney, 33, of Mountpottinger Road in east Belfast, was found unconscious in Cromac Street.
It is understood police are treating the incident as a pub fight.
A further search was carried out in the Short Strand area of Belfast.
Disturbances
Several police officers were injured in disturbances which followed search operations in the Markets area in connection with the killing.
Officers were attacked with bricks, bottles and stones during trouble on Monday night.
There were further disturbances on Tuesday as officers were subjected to stone-throwing.
A car was set on fire close to the Markets area and several police vehicles were damaged.
Former mayor Alex Maskey of Sinn Fein said "heavy handed" police tactics had caused the trouble.
However, Ulster Unionist Sir Reg Empey said the disturbances were orchestrated by republicans.
"What we've had in the last couple of days is an orchestrated campaign to move the focus from the crime to police action," said the East Belfast assembly member.
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