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7 July 2005 London bombings - Wikipedia, the free encyclopedia |
 | | The bombings led to a severe, day-long disruption of the city's transport and mobile telecommunications infrastructure. |
 | | Forensic examiners had originally determined the explosives to have been military grade plastic explosive, and as the blasts were thought to have been simultaneous, that timed detonators of equivalent sophistication were employed. |
 | | While it is widely believed that mobile phones were used to remotely detonate the Madrid train bombs, a method thought unworkable due to the lack of reliable mobile phone service within the London Underground, the Madrid bombs were apparently activated by the battery of a mobile phone that switched on via the alarm function. |
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