BAGHDAD—Twin suicide bombings ripped through a busy market in the Iraqi capital Thursday, killing at least 28 people and wounding dozens, officials said. The rare suicide bombing attack hit the Bab al-Sharqi commercial area in central Baghdad amid heightened political tensions over planned early elections and a severe economic crisis. Blood smeared the floors of the busy market amid piles of clothes and shoes as survivors took stock of the disarray in the aftermath. No one immediately took responsibility for the attack, but Iraqi military officials said it was the work of the ISIS terrorist group. Iraq’s military said at least 28 people were killed and 73 were wounded in the attack; some of the wounded were in serious condition. The Health Ministry announced that all of its hospitals in the capital were mobilized to treat the wounded. Maj. Gen. Tahsin al-Khafaji, spokesman for the Joint Operations Command, which includes …