At least two people were killed and seven others were wounded after a suicide car exploded in central Baghdad on Tuesday, police said. The attack in the Allawi commercial area came on the ninth anniversary of the start of the US-led campaign to topple Saddam Hussein in 2003, according to the (CNN). No one immediately claimed responsibility for the attack. Iraqi officials have expressed concern that the continuing violence could cast a shadow as Iraq prepares to host the next Arab summit on March 29. The government said last month that logistical and security arrangements had been agreed upon for the event.