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Cleric 'held by acid attack police'
The Chelsea and Westminster Hospital in London, where the two teenagers are receiving treatment after their return to Britain
A cleric is believed to be in police custody in connection with the acid attack which injured two British teenagers in Zanzibar.
The Daily Telegraph said sheikh Issa Ponda Issa handed himself in to police a day after he was injured as he tried to evade police following the attack on Kirstie Trup and Katie Gee.
The development comes as the 18-year-old friends, from north London, enter a fourth day at London's Chelsea and Westminster Hospital.
A spokesman confirmed the teenagers remain in a "stable" condition, while medics treat them for burns inflicted in an unprovoked attack on Wednesday while they were on a volunteering holiday on the island, off the coast of Tanzania.
Members of both teenagers' families are keeping a bedside vigil, after the pair were flown home and immediately sent to the capital's regional burns centre.
One friend of the pair told how one of the two men involved in the unprovoked attack "smiled" before throwing acid. Speaking from Zanzibar, medical student Olivia Moore told Channel 4 News: "The two men were on a moped and they went past a group of tourists.
"They stopped for the girls and the two men then looked at each other, nodded, and then the man on the back of the bike smiled and threw acid on the girls. From then on it's just chaotic. There was no incident that preceded the actual attack. Everyone was shocked. Nobody can think of a motivation or anything that precipitated this."
Miss Gee has already taken to Twitter to thank well-wishers for their support, while a photograph released by the teenagers' families showed the injuries one of them suffered in the attack.
The young women were enjoying the last week of a trip as volunteer teachers to the predominantly Muslim island when the corrosive substance was thrown at them in an apparently unprovoked attack. They had originally planned to return in time to collect their A-level results this week, with Miss Trup hoping to study history at the University of Bristol while Miss Gee is considering the University of Leeds, it was reported.