Death toll from ISIS' public executions of Iraqi Sunni tribesmen passes 200 Shiite Muslim worshippers carry symbolic coffins for victims of the Islamic State group near the holy shrine of Imam Hussein ahead of the Ashoura holiday in the Shiite holy city of Karbala, 50 miles south of Baghdad, Iraq, Sunday, Nov. 2, 2014. AP Photo/Karim Kadim Last Updated Nov 3, 2014 12:33 PM EST BAGHDAD - An Iraqi official and a Sunni tribal leader say Islamic State of Iraq and Syria militants have shot dead 36 Sunni tribesmen, women and children, pushing the total number of people killed by the group's apparent drive to punish the tribe in recent days to more than 200. Sheik Naim al-Gaoud, a senior figure in the Al Bu Nimr tribe, says the militant group on Monday killed 29 men, four women and three children, lining them up in in the village of Ras al-Maa, north of Ramadi. He says they publicly shot each of them dead one by one. He says that 120 families are still trapped there. An official with the Anbar governor's office corroborated the account of Monday's killings. Analysts believe ISIS may be trying to take revenge for the tribe siding with the American forces in the past, as well as Iraqi security forces. The killings also likely will terrify other Sunni tribes that would think of resisting the militants. Meanwhile Monday, ISIS claimed responsibility for two bombings on Shiite pilgrims that left 23 people dead in Baghdad a day earlier. In a statement posted online late Sunday, the group said the car bomb attacks happened despite the tight security measures amid the Shiites' "biggest infidel event." The two attacks, on Sunday, targeted Shiite pilgrims and the roadside tents serving them on their way to the holy city of Karbala to mark the Ashoura religious holiday. Sunni insurgents frequently target Shiites, who they consider heretics. Also Monday, police said a bomb struck a group of Shiite pilgrims, killing five people and wounding 11 in Baghdad's southwestern suburb of Nahrawan. Another a bomb blast on a commercial street killed three people and wounded 11 others in Baghdad's western district of Amil, police said. In the western suburbs of Baghdad, a roadside bomb blast struck an army patrol, killing two soldiers. All officials spoke on condition of anonymity because they were not authorized to talk to journalists.