It has been another bloody day in Iraq with more than 30 people killed in bomb attacks, three days before the country votes on its draft constitution.But in a glimmer of hope, one of the main Sunni Arab political groups – the Iraqi Islamic Party – has decided to urge its supporters to back the new charter. Some 24 people died when a car blew up in a market in the northern town of Tal Afar and at least 36 people were wounded. In another market attack, this time in Baghdad, a mortar shell exploded, killing two people and injuring 14 others, including two children. Elsewhere in the capital, a suicide car bomber attacked an Iraqi army convoy, leaving five dead and injuring 12 more. Iraqis will vote in a referendum on a draft charter on Saturday. After last-minute talks aimed at getting Sunni Arabs on side, the Shi’ite and Kurdish-led ruling coalition offered to discuss amending the constitution four months after an election in December. Other Sunni leaders have said they will still oppose the document. It needs a majority in its favour to pass but a two-thirds majority in any three of Iraq’s 18 provinces would see it rejected.