Gunmen wearing Iraqi army uniforms seized a senior Iranian diplomat as he drove through a central Baghdad neighborhood, officials said Tuesday. One Iraqi government official said the diplomat was detained by a special Iraqi army unit that reports directly to the US military. But a military spokesman denied any US troops or Iraqis that report to them were involved. "We've checked with our units and it was not an MNF-I (Multi-National Forces - Iraq) unit that participated in that event," military spokesman Lt. Col. Christopher Garver said, adding he could not confirm the diplomat was seized. An official with the Iranian Embassy in Baghdad said the diplomat was heading to check on the planned opening of an Iranian bank in Karradah when he was seized by men wearing Iraqi army uniforms.