Paraphrasing from live radio broadcast, so no direct quotes (though some are almost direct).
Today six search warrants were issued under Terrorism Act.
All four suspects (who had previously been watched) arrived in London by train on Thursday, July the 7th, appearing on CCTV at Kings Cross station shortly before 08:30. All four are now believed to have been killed in the explosions, with documents relating to the suspects found close to the sites of the three underground explosions, and personal effects found close to the bus explosion.
At Luton a vehicle was found in the station car park.
One man has been arrested in West Yorkshire and will be brought to London for further questioning.
Andy Clarke, Head of Anti-Terrorist Branch