People have been penetrated by fragments of bomb blast debris. Some have been penetrated by pieces of the bus, others by pieces of nearby buildings such as glass. "With some bomb blasts there can be some fragments of the device itself. From what we know, we believe most of the patients brought in here were injured in the bus blast. In the main we think they were commuters although there are some people with accents from around the world. "One of the features of an explosion, which we know from blasts in Northern Ireland and Israel, is a condition known as blast lung or shock lung, where people sustain a lung injury which leaks over time They appear fine but they slowly deteriorate. We have people here who were in the bus blast and appear to be well but it is important that we watch them.
We have even had builders working on the site next door offering to give blood." Britain's worst terror atrocities * MARCH 2001: Car bomb at the BBC's headquarters Police say the Real IRA was behind the blast One man was wounded. * AUGUST 1998: The Omagh bombing, a car bomb attack by the Real IRA Twenty nine were killed 220 people were injured. * FEBRUARY 1996: Two people killed by bomb in London's Docklands area. * MARCH 1993: Bombs in litter bins in Warrington kill two boys. * APRIL 1992: Car bomb at Baltic Exchange in London's financial district kills three and wounds 91. * FEBRUARY 1991: The IRA fires mortar bomb at Prime Minister John Major's office No-one is injured. * SEPTEMBER 1989: Bomb at Royal Marines Music School in Deal kills 11 and wounds 22.
* DECEMBER 1988: A Boeing 747 crashes on the town of Lockerbie, Scotland, killing all 259 aboard after a bomb on board explodes. * NOVEMBER 1987: Eleven killed and 63 wounded when the IRA bombs Enniskillen. * OCTOBER 1984: Margaret Thatcher's cabinet narrowly escapes IRA bomb which kills five in Brighton hotel during Tory party conference. 'Terrorists will never destroy what we hold dear' The text of Tony Blair's speech on the London explosions at the G8 Summit in Gleneagles: "I'm just going to make a short statement to you on the terrible events that have happened in London earlier today.