Thousands of Shiite protesters chanted slogans against the Islamic State (IS) group on Wednesday as they carried the coffins of victims of a mosque attack that killed 33 people in the western Afghan city of Herat. Up to 5,000 angry mourners, including relatives of the dead, congregated near the site of yesterday's suicide bomb attack. IS claimed responsibility for the latest atrocity targeting the minority community. <br/><br/>The mourners, who were set to march to the cemetery to bury their dead, also demanded that the government bring the perpetrators to justice and pledged to take revenge if it did not.