A suicide bomber blew up himself on Wednesday among a group of pro-government, anti-Islamic State group Sunni militias near Baghdad, killing at least 22
The attacker managed to mingle with the militiamen who gathered at a military base in the town of Madain to receive their monthly payment
At least 15 of the dead were Sunni militiamen known as Sahwa or the Awakening Councils who viewed as traitors by the Sunni militants.
This latest bold attack by militants are seeking to undermine government efforts to fight extremists.
Islamic State have captured the pilot of a Jordanian warplane who has been named as Flight Lieutenant Moaz Youssef al-Kasasbeh, who crashed in northern Syria, Jordan's military has confirmed.
IS fighters have downed Iraqi and Syrian government aircraft and helicopters in the past. We also know that IS has overrun a number of Syrian air defence bases.
The latest news will raise concern among the coalition nations about the level of armament available to the militants and the defensive measures deployed by coalition jets.