The 47-year-old woman was arrested on suspicion of possession of an offensive weapon and assault
The Metropolitan Police said the four men, aged 34, 39, 42 and 52, were found with stab wounds. No further update has been given on the extent of their injuries.
The 47-year-old woman was arrested on suspicion of possession of an offensive weapon and assault, the force added.
The stabbing is believed to have been a mental health-related incident and a pair of scissors was recovered at the scene, according to the police.
A London Ambulance Service spokesperson said: “We sent an ambulance crew, a paramedic in a fast response car and an incident response officer. We also dispatched London’s Air Ambulance. We treated four patients at the scene and took them all to a major trauma centre as a priority by road.”
