Nine people were injured after someone threw a harmful corrosive substance at a woman and two children in London on Wednesday, according to CNN and The Guardian. It happened on Lessar Avenue, Clapham, South London, around 7:25 pm. The police came to the scene right away. Three witnesses tried to help the first victims and three police officers had minor injuries while responding, according to the police. Five of them needed medical help. Photo from the scene (video screenshot) The Metropolitan Police said in a statement the person believed to be responsible ran away after the incident happened…