Originally published by the Voice of America (www.voanews.com). Voice of America is funded by the US Federal Government and content it exclusively produces is in the public domain. 2 Killed in Iraq Bomb Attack ---------------------------- (http://enews.voanews.com/t?ctl=F1E128:3919ACA Suicide bomber exploded his vehicle near Iraqi army checkpoint Blast scene with police and fire fightersIraqi authorities say a suicide car bomb has exploded in Baghdad killing at least two Iraqi soldiers and wounding several others. Security officials say the blast occurred early Saturday when a suicide bomber driving at high speed exploded his vehicle near an Iraqi army checkpoint in the Karada district of the capital. The blast followed a suicide bombing Friday at a bus station that killed at least five people and wounded about a dozen others. Separately, the U.S. military said Saturday an American soldier was killed by a roadside bomb southeast of Baghdad. The attacks come as Iraqis prepare to vote next month in a referendum on a proposed constitution. Some information for this report provided by AP, AFP and Reuters. .