2005: Tube chaos after more blasts
London's underground network has been plunged into chaos with stations cleared after minor blasts on two trains and a bus.
The explosions - two weeks after blasts killed 52 - involved detonators only, a BBC reporter said. There was one injury.
Police sources say the blasts may have been near simultaneous and that they are being linked with the 7 July bombs.
They say a number of fugitives are being sought. Two people have been arrested in Whitehall.
Detectives are recovering a lot of evidence from the sites, and believe the latest events may either be a repetition of the 7 July attacks or may help with a breakthrough in the investigation.
Eyewitnesses heard bangs and saw abandoned rucksacks at the sites of the incidents at Warren Street and Oval tube stations as well as the number 26 bus in Bethnal Green.
There was an attempt to cause an explosion at Shepherd's Bush station, on the Hammersmith and City line, police said.
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