At least 90 people were injured including local police chief Brigadier Sarhad Qader and the press officer of the police directorate, whose conditions are described as critical.
In Kirkuk, 250km (150 miles) north of Baghdad, four bombs were planted near the house of a military officer, the city's police commander, Brig Gen Sarhad Qadir, told AP.
Amongst the more unusual tourist destinations hoping to make a splash at WTM 2011 are Sarhad Tourtism Corporation, a public sector tourism organisation in the North Western Frontier Province of Pakistan (the tribal belt suspected by Global Intelligence Agencies to be the hotbed of Al-Qaeda).