Several civilians and two Iraqi soldiers were killed as twin car bombs rocked Mosul yesterday while US troops detained six men suspected of killing Baghdad's governor. In the troubled city of Mosul, a white van tried to swerve inside a joint convoy of US and Iraqi military vehicles, but exploded prematurely, killing several civilians, US Army Sgt. Chris Schaeffer said. A second car parked on a street, not far away from the first blast, exploded and killed two Iraqi soldiers, Schaeffer said. The militant group Ansar Al-Sunnah Army, in an Internet statement, claimed responsibility for an attack in Baghdad in which four bank guards were burned to death in a van carrying new bank coins. Also in the capital, a policeman was shot dead and the director of municipal services in the flashpoint city of Baqubah was gunned down, police and witnesses said. With US forces on the offensive hoping to break up rebel cells ahead of the elections, US troops in the capital snatched six men linked to last week's assassination of Baghdad Gov. Ali Al-Hadri, the US Army said.