The Metropolitan Police was called at 1.08am on September 21 with reports of a man with a knife threatening people in Leicester Square. At the scene officers discovered four men, aged in their 20s and 30s, suffering wounds. A 50-year-old man was arrested on suspicion of grievous bodily harm, possession of an offensive weapon, grievous bodily harm, affray, and possession of a Class B drug. A spokesperson for the Met said: "We were called at 01:08hrs on Sunday, 21 September to Leicester Square, Westminster to reports of a man with a knife threatening members of the public. "A 50 year-old-man was arrested at the scene on suspicion of grievous bodily harm, possession of an offensive weapon, grievous bodily harm, affray and possession of a Class B drug.