Police have been granted more time to question an 18-year-old man in connection to the stabbings outside a Nottingham nightclub.
A total of six men received hospital treatment for knife injuries after violence erupted outside Pryzm on Lower Parliament Street at 3.48am yesterday (Monday 6 May).
A 19-year-old man, remains in hospital in a critical condition.
The other five, who have been discharged from hospital were arrested on suspicion of violent disorder.
Four of the men have now been released on police bail pending further enquiries.
Police say they believe the fight first started inside the Pryzm venue before continuing on to Lower Parliament Street at 03:48 BST.
Police are appealing for any witnesses from inside the club and on the streets to come forward, as well as any drivers that may have dash-cam footage of the incident.
The investigations had disrupted the city on Monday morning as police cordons stretched from Lower Parliament Street to Clumber Street and George Street.
They have now been removed and bus routes are back to normal.