A second teenager has been arrested in connection an acid attack that left a delivery driver fighting for his life.

The 16-year-old boy was detained on Saturday night (November 4) on suspicion of grievous bodily harm, following the assault in Walpole Road, Walthamstow, on Thursday night.

The victim, named locally as takeaway delivery driver Muhammed Nawshad Kamal, 32, was left critically injured after being sprayed with the noxious substance and may lose his sight.

The Metropolitan Police also arrested a 14-year-old boy on suspicion of grievous bodily harm on Friday, who has now been released under investigation.

Police say at the time of the attack Mr Kamal was driving a moped on his way to deliver a pizza, when he was approached by two men who were also on a scooter at about 6pm.

The men tried to steal the his vehicle, and during the course of the attempted robbery police believe a corrosive substance was sprayed in his face.

The delivery driver's visor was up and he received severe injuries to his eyes and face, while also inhaling the substance.

Passersby went to the man's aid, pouring water on his wounds, and he was taken to hospital where he remains in a critical condition.

Officers say Mr Kamal is likely to lose sight in both of his eyes as a result of the attack.

Detective Chief Inspector Gordon Henderson, of Waltham Forest CID, said: "This attack has left a man fighting for his life and with terrible eye injuries.

"This was an innocent man going about his work as a delivery driver, who may never see again.

"This is not a time to hesitate, if you have any information about this crime I would appeal that you immediately call police.

"Your phone call could save some other innocent person; it is imperative that we arrest those responsible."

A second incident also took place half an hour later on Yarmouth Crescent in Tottenham.

The next victim, also a 32-year-old delivery driver, was approached by two men on a scooter who attempted to steal his moped and sprayed him in the face with a corrosive substance.

The man was also treated in hospital, but his injuries are not believed to be life-threatening or life-changing.

Police said it had "not been established" whether the two attacks were linked, but it was an "active line of inquiry".