Daniel Craig will be returning to our screens in the latest 007 film in October - but London Tonight has been given a sneak preview, with behind the scenes footage and interviews.
Footage from MGM/Sony Pictures.
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Paramedics were on standby outside the police cordon as armed officers stood by the property.
A team of researchers has taken samples from the ten busiest London Underground lines to work out which are the dirtiest.
The action comes on top of an emergency timetable which has seen hundreds of trains a day being axed.