Seven million Syrian have been displaced by the country's civil war, the head of the UN refugee agency in Syria said.
Tarik Kurdi said that five million of the displaced are still in Syria, while around two million have fled to neighbouring countries.
He added that UN assistance had been a "drop in the sea of humanitarian need" and the funding gap is "very, very wide."
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Kevin Davis, 53, ran a medical company and helped to treat a 15-year-old who had taken a drugs overdose despite not having qualifications.
CCTV shows the 19-year-old victim being struck by a car and thrown metres into the air, before he lands on the pavement and slides along it.
Police are investigating a fresh allegation against John Worboys alleged to have taken place in 1997, ITV News understands.