Within 15 minutes, they appeared to have struck again, throwing the corrosive liquid at a man on Cazenove Road and causing "life-changing" facial injuries.
Resham Khan and her 37-year-old cousin Jameel Mukhtar were doused in sulphuric acid by an attacker, who was identified as a man named John Tomlin, while they were inside a auto in traffic in Beckton.
About 40 minutes later, another victim was attacked in Shoreditch by two men on a moped, having liquid thrown in his face.
At around 10.50pm, a man had a corrosive substance thrown into his face by two men on a moped in Upper Street junction with Highbury Corner.
Police assume the attacks are linked since two of the victims had their mopeds stolen.
The issue was highlighted earlier this year when a man flung acid across a crowded London nightclub, injuring 20 and leaving two people blinded in one eye. A male in his teens was arrested on suspicion of grievous bodily harm and robbery.
London, July14:A teenager has been arrested following a series of acid attacks in northwest London on Thursday night, Scotland Yard said on Friday.
Speaking to LBCradio in the wake of the attacks, Metropolitan Police chief Cressida Dick said: "Acid attacks are completely barbaric". Four others were also injured in the attacks with a use of acid on Thursday, one of them received severe burns.
'I am clear that life sentences must not be reserved for acid attack survivors, ' she wrote in the Sunday Times. They then stole his vehicle.
According to Clark, all five victims were riding mopeds at the time of the attacks, but they come from a "variety of backgrounds". The BBC cited resident Jon Moody saying, "I heard a high-pitched scream but thought it was the boys playing football".
The victim was fatally wounded during a clash in which shots were also fired in King William Walk, Greenwich, the Metropolitan Police said.
Three of the victims were taken to the hospital for treatment.
Attacks using acid have been on the rise in England in recent years.
Meanwhile, the Government has announced it will outline a new strategy on combating acid attacks in the Commons on Monday.