A car bomb attack in the Iraqi capital Baghdad has killed at least four people and wounded 25 others. The bomb exploded near a restaurant in the mainly Shia district of Shula in northern Baghdad. Bbc.co.uk reported three more people killed in three separate bombings in west and south Baghdad. Baghdad is currently hosting a major auction with participatin of international firms to explore oil and gas across Iraq. Thursday's blast follows two bomb attacks on 13 May in Baghdad, which killed six people. The attacks targeted police.