A woman has been arrested in connection with a "horrific" knife attack as a man continues to fight for his life.
Dominic Alexander, 25, from Enfield, north London, is still in a critical condition in hospital after the stabbing on February 26.
Police were called to Green Street, Enfield, to reports of people fighting and Mr Alexander was found with stab injures.
He was treated at the scene before being taken to hospital.
On Thursday, a 21-year-old woman was arrested on suspicion of assisting an offender as well as perverting the course of justice.
She has been bailed to a date in mid-April.
Three men, aged 24, 26 and 27, arrested at the scene on suspicion of attempted murder have been bailed to a date in late March.
An incident room has opened at the Homicide and Major Crime Command under Detective Chief Inspector John Massey.
It is thought the victim was attacked as a result of a dispute near the Sporting Green Public House at Central Parade, Enfield, but officers retain an open mind about the motive, DCI Massey said.
"We would also appeal for anyone who saw anything take place shortly after half past midnight on Monday night into Tuesday morning at or near to Central Parade, or saw any arguments earlier in the evening inside the Sporting Green pub, to come forward as soon as possible," he added.
"This was a horrific attack on a young man who has been left with very serious injuries and is fighting for his life in hospital. If you know anything please contact us."
