By Ryan Fahey Nine people have been rushed to hospital after a terrifying acid attack. An investigation has been launched after a corrosive substance was thrown at the three people in Clapham South. After the incident, the attacker fled the scene. The Metropolitan Police have now launched a manhunt to track them down. Detective Superintendent Alexander Castle said: “Officers are on scene following this horrific incident. Three victims – a woman and her two young children – have been taken to hospital for treatment. Three other people – all adults – have been taken to hospital for injuries sust…