A 17-year-old boy has suffered burns in an acid attack in east London.
Police said they were called to Collier Row Road, Romford, by the London Ambulance Service at 7.43pm on Thursday.
"London Ambulance Service and London Fire Brigade attended the scene and the injured male, aged 17, was taken to an east London hospital where he received treatment for superficial burns," a Scotland Yard spokeswoman said. "He has since been discharged from hospital."
Officers launched an investigation into the incident and visited the boy in hospital.
There have been no arrests and police appealed for witnesses to come forward.
It comes just weeks after a teenager was jailed for 17 years following the UK's first acid attack killing.
Xeneral Webster, 19, pleaded guilty to causing the death of Joanne Rand after the nurse was caught up in a fight over drugs between Webster and another man last year in High Wycombe.
Ms Rand's face instantly "begun to burn" after a bottle of acid was knocked out of Webster's hand and into the 47-year-old.
She was treated for her injuries and released from hospital, but the mother-of-three died 11 days after the attack from multiple organ failure after she developed sepsis.
Anyone who has information was asked to call policing by dialling 101 and quoting reference CAD6385/15AUG, tweet MetCC, or call Crimestoppers anonymously on 0800 555 111.
Additional reporting by PA