Britain Investigators were picking through torn-up train carriages in tunnels deep below central London, seeking clues and yet more bodies of victims of the London bombings as the death toll hit 50 amid reports casting suspicion on a Moroccan cleric. G8 Leaders of the world's most powerful nations headed home from a summit here after approving a raft of measures to counter global warming and African poverty that generally failed to satisfy aid activists and environmental groups. Britain An Islamic leader warned in a Portuguese newspaper interview 15 months ago that a London-based group, Al-Qaeda Europe, was on the verge of a major attack. Britain Nations around the world tightened security after a string of deadly bombings rocked London, attacks that Britain said bore the hallmarks of Muslim militant group Al-Qaeda. Britain Britain's Queen Elizabeth II vowed that the people who carried out the London bombings "will not change our way of life" as members of the royal family toured hospitals to comfort the victims. Britain Military-style plastic explosive is likely to prove to be what was used in the London bombings, according to experts who point out the small size of the devices used and the large extent of the damage. Iraq Iraq called on Egypt to clarify how far it had gone in reaching out to insurgents, after its head of mission was killed by militants who had seized him on a Baghdad street. Philippines The Philippine opposition kept up pressure to oust President Gloria Arroyo following the mass resignation of key cabinet allies as the military issued renewed warnings to troops to remain neutral. France An Air France flight bound for Chicago took off from Paris after being diverted back here following the original take-off amid US suspicions over one of the passengers, an Air France spokesman said. Italy An Italian court handed life sentences to three members of the modern-day Red Brigades for their role in the 1999 killing of a government consultant. US Hurricane Dennis pummelled Cuba, killing 10 people and displacing 1.5 million others, President Fidel Castro announced, after its fierce winds and heavy rains left another five dead in Haiti.