The incident happened in Covent Garden on Endell Street at around 12.27pm on Wednesday, 5 August. All four victims, aged 34, 39, 42, and 52, were found with stab wounds and taken to hospital. A 47-year-old woman was arrested on suspicion of assault and possession of an offensive weapon. "Police remain in the area, with a scene in place on Endell Street and the surrounding areas in Covent Garden." Alternatively, information can be provided anonymously through the Crimestoppers website or by calling 0800 555 111.