Police say they are growing increasingly concerned for the welfare of two missing children from West London. 11-year-old Kathleen Doherty and 14-year-old Biddy Doherty from Greenford also have links to Edgware and Harrow - but could be anywhere in the UK
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Six people were injured after they were hit with the substance during an "altercation" between two groups at a shopping in east London.
Save Your Uber in London was set up after it was announced the firm would not have its licence renewed when it expires next week.
Survivors are still traumatised, homeless and want answers.