Two people are being questioned about the kidnapping of a British photographer in Syria.
The man and woman were arrested at Heathrow Airport. Scotland Yard is investigating whether one of those arrested is an NHS doctor.
Ronke Phillips discussed the latest developments with Nina Hossain.
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Members of the Royal Philharmonic recorded the recital at London's famous Abbey Road Studios on custom-made instruments.
The three-week trial is designed to speed-up the flow of passengers leaving Holborn station during the morning rush hour.
Tube managers unveiled plans last night to hire a new workforce of part-time drivers in a bid to rescue the 24-hour service.