Britain Explosions rocked underground stations and ripped apart a bus in central London, killing at least two people and injuring scores of others in a series of "terrorist attacks" a day after the city won its bid to host the 2012 Olympic Games and as G8 leaders met in Scotland. Britain Blood-smattered and crying, thousands of people staggered into the streets of London after at least six explosions rocked the city in a morning of chaos that left at least two people dead. Britain A group calling itself the Organisation of Al-Qaeda Jihad in Europe claimed Thursday's attacks in London and threatened similar ones in Italy, Denmark and other countries with troops in Iraq and Afghanistan. G8 British Prime Minister Tony Blair left the Group of Eight summit in Scotland by helicopter to be briefed on the London attacks. Britain Britain's Queen Elizabeth II said she was "deeply shocked" by a wave of terrorist attacks on London underground trains and a bus, and sent her sympathy to those affected. Britain The leaders of the Group of Eight declared the London bomb attacks to be "barbaric" attacks on all nations, and said their summit in Scotland would continue despite the bombings. Britain The International Olympic Committee said following the attacks in London that it was confident the British capital would be able to provide a secure environment for the 2012 Games. G8 The world's most powerful leaders got down to talks on aid to Africa and climate change but the meeting was brutally overshadowed by a coordinated terrorist attack in London. G8 US President George W. Bush said there was a "consensus" to plan the era beyond the UN's Kyoto Protocol as he reaffirmed Washington's faith in a voluntary, technology-driven approach to curb greenhouse gases. G8 US President George W. Bush threw his weight behind an abolition of government farm subsidies by 2010 but said their elimination should come through the World Trade Organization rather than the G8. Afghanistan Numerous officials in Afghan President Hamid Karzai's government are implicated in war crimes that took place at the start of the country's bloody civil war in the early 1990s, Human Rights Watch said in a report. Mideast Palestinian prime minister Ahmed Qorei was to defend his government's record in parliament, amid mounting anger over the continuing security chaos in the West Bank and Gaza Strip. Bosnia NATO troops arrested the son of top Bosnian Serb war crimes fugitive Radovan Karadzic, who is wanted for alleged genocide including the 1995 Srebrenica massacre.