A roadside bomb killed two U.S. soldiers and an Iraqi west of Baghdad on Thursday in the latest of a series of resistance attacks that have made February the bloodiest month in Iraq since the war. In New York, U.N. Secretary-General Kofi Annan was set to announce that he opposed holding early elections in Iraq. Iraqi resistance attacks have raised concerns over stability in a country where ethnic groups are jockeying for power ahead of a June 30 U.S. handover of sovereignty to Iraqis. Annan and his senior envoy, Lakhdar Brahimi, were scheduled to brief more than 45 countries later in the day on the viability of elections, followed by a meeting with the 15 U.N. Security Council members. U.N. diplomats said that as expected Brahimi concluded on his return from Iraq that organising fair elections by June 30 was not feasible. He and Annan would have to further discuss the shape of an Iraqi interim government to assume sovereignty. The latest attack, in the town of Khalidiyah, 60 km (38 miles) west of Baghdad, brought to 378 the number of American soldiers killed since the U.S.-led war to topple Saddam Hussein started 11 months ago. On Wednesday evening, insurgents launched 33 mortars and five rockets at the main U.S. prison in Baghdad and troops killed one Iraqi as they returned fire, the U.S. military said on Thursday. **PHOTO CAPTION*** Sunni tribal leaders take part in a meeting at Umm al-Qura mosque in Baghdad February 19, 2004. (Oleg Popov/Reuters)