Baghdad, Sha'ban 6, 1437, May 13, 2016, SPA -- A group of gunmen, including two suicide bombers, stormed a coffee shop in a town north of Baghdad early on Friday, killing at least 13 people and wounding 15 there, Iraqi officials said. Within hours, ISIS claimed the responsibility for the attack, which took place shortly after midnight Thursday in Balad, 80 kilometers (50 miles) north of the Iraqi capital, AP reported. The attack came on the heels of a two-day wave of bombings in Baghdad that killed nearly 100 people - attacks that have also been claimed by ISIS. The deadliest struck Sadr City in northeast Baghdad on Wednesday, killing 63 people. According to Iraqi officials, three gunmen armed with machine guns opened fire into the crowded Balad cafe and once police arrived at the scene, two of the attackers detonated their suicide vests. The officials spoke on condition of anonymity because they were not authorized to talk to the media. --SPA 19:47 LOCAL TIME 16:47 GMT www.spa.gov.sa/w