At least 38 people were killed yesterday and more than 700 injured as terrorists struck at the heart of London, causing the biggest loss of life in a terrorist attack on mainland Britain.
In a series of coordinated strikes, explosive devices were detonated on three underground trains and a bus travelling through central London during the morning rush hour.
Last night it was feared the death toll could rise, with the explosions leaving many people seriously injured.
Police denied that they had recovered any unexploded devices. But a source told The Guardian that three controlled explosions had been carried out on "suspect devices".
