Flights have been delayed and cancelled at airports across the UK because of a technical problem at an air traffic control centre.
London Unis In Global Top Six
Four of the top six universities in the world are in the UK, and two of them are in London, according to a new league table.
Cambridge University has ended it's two-year run as the best university worldwide, slipping down to second place behind the Massachusetts Institute of Technology (MIT) in the annual QS World University Rankings.
University College London (UCL) was in fourth place, Oxford in fifth, and Imperial College London in sixth.
The other universities in the top 10 were all institutions in the United States.
A 26-year-old man has been arrested over a violent attack on a London bus that left a young woman unconscious.
A cycling leader has told MPs riding a bike in London can be risky at times and in certain places.
Man stabbed to death in Southwark believed to be a case of mistaken identity
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