A man strapped with explosives blew himself up among a group of Iraqi army recruits in Baghdad on Wednesday, killing six people and wounding 25, police and hospital officials said. Police sources said the bomber mingled with a crowd outside the recruiting centre at an abandoned airfield in the Muthana district of central Baghdad before detonating an explosive belt, Reuters reported. Officials at Yarmouk hospital, nearest to the site of the attack, said they had received six dead and 25 wounded. The Muthana airfield recruiting centre has been attacked by suicide bombers several times in the past.