Ahead of his first day on the job as the BBC's new Director-General, Tony Hall told reporters it is "exciting" to be returning to the place where he started his career and said he is proud and privileged to be taking up the post, which he described as an "enormous responsibility".
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The 34-year-old from Coulsdon in Surrey died during the private party in Headley in the early hours of Monday, Surrey Police said.
The Home Office made the arrests at various restaurants across London on July 4.
Two years on from the Israel-Hamas conflict, Hamas cadets are being trained to carry out raids in a terrifying summer camp.