Iraq Twenty-four Iraqi children were killed by a suicide car bomber targeting US soldiers as they handed out chocolates in a Baghdad neighbourhood they had entered to warn of a possible attack. Some 20 more children were wounded in the blast, while a US soldier died and three were injured, hospital and US sources said. Britain The British authorities said they were hunting for the masterminds of last week's bombings in London that were apparently carried out by four Britons who "blew themselves up." Britain British Prime Minister Tony Blair urged Britons to react calmly to last week's London bombings and condemned attacks against Muslims. Britain Hundreds of police swept into Islamic communities across Italy, raiding dozens of homes and seizing material in several cities a day after the government announced measures aimed at cracking down on Islamic extremism. Britain British Home Secretary Charles Clarke urged the European Union to rapidly pass and implement security laws, using the momentum from international solidarity over last week's London bombings. Pakistan Three passenger trains collided in a devastating nighttime disaster at a station in southern Pakistan, killing up to 150 people and injuring hundreds more, officials said. Mideast Two engineers from Britain and Austria were being held at a refugee camp in the Gaza Strip after being kidnapped by a Palestinian family trying to secure the release of their jailed relatives. Mideast Israeli Prime Minister Ariel Sharon ordered that 21 Gaza Strip settlements be sealed off to non-residents in a bid to stop extremists flocking to the territory ahead of next month's pullout. Kenya Sixty-six people, including at least 22 children, were killed in a brutal raid on this remote village in northeastern Kenya in what is believed to be the country's worst-ever single episode of inter-clan violence, a local legislator said. US Just hours before Discovery's planned liftoff, NASA kept a wary eye on the sky but ordered fueling of the craft for the first space shuttle mission since the 2003 Columbia disaster. NKorea Visiting US Secretary of State Condoleezza Rice welcomed Seoul's ambitious offer of energy aid for North Korea but warned Pyongyang not to expect rewards before progress on nuclear disarmament. Finland Aceh separatists said "amazingly surprising" advances had been made so far in peace talks with Indonesian officials amid hopes that the two sides will finally agree to end a 30-year conflict that has claimed nearly 15,000 lives. Philippines Tens of thousands of protesters took to the streets to call on Philippine President Gloria Arroyo to resign over charges that she rigged last year's election. US The US trade deficit narrowed to 55.3 billion dollars in May from 56.9 billion the month before, thanks to a fall in oil prices, the government said.