Iraq US President George W. Bush vowed that Iraqi elections would go ahead as planned despite a wave of deadly insurgent attacks, as Iraqi authorities announced 51 arrests following Sunday's devastating car bombings. Iraq A grid of intersecting export and domestic oil pipelines in northern Iraq was on fire, belching black smoke and shooting out bright red flames. Mideast Opponents of next year's planned Israeli pullout from the Gaza Strip invoked the memory of the Holocaust by wearing orange Stars of David on their shirts as a mark of protest. Chile Augusto Pinochet will stand trial for atrocities from his 17-year regime in Chile, a Santiago court ruled unanimously, as the former dictator, 89, recovered in hospital from a stroke. Ukraine Ukraine opposition leader Viktor Yushchenko savored a convincing victory over his presidential rival in a televised debate just days before their election rematch. Sudan African Union troops monitoring a ceasefire between the Sudanese government and rebels in southern Darfur have suspended their activities pending the results of an investigation into an attack on one of its helicopters, an AU source said. Peru A bus drove off a bridge and fell almost 200 meters (650 feet) into a river in Peru's Amazon jungle, killing 50 of the 60 people on board, authorities said. Indonesia The terrorism trial of Indonesian cleric Abu Bakar Bashir was halted abruptly as his supporters tried to attack a witness testifying against the alleged leader of the Jemaah Islamiyah extremist group. Japan Japan issued tourist visas to Taiwan's outspoken former president Lee Teng-hui and his family, defying warnings from China which demanded Tokyo reverse its decision.