The Met police said the injuries were tied to one incident involving two groups of males.
According to the Metropolitan police, the number of acid attacks in London has risen to more than one incident a day.
Police said a 16-year-old had been charged with 15 offences after a series of acid attacks in London. Another teenager has been released on bail.
Bangladeshi photographer Khaled Hasan documents the lives of women after acid attacks.
They were set up by Pakistani entrepreneur Mussarat Misbah.
Organized gangs are throwing acid on women who are dressed immodestly according to Iranian standards.
Photographer Rahul Saharan's photo series shows five young women who no longer feel like they have to hide their faces.
Warning: graphic image.