A mass funeral ceremony was held on Tuesday in Turkey for some of the 32 citizens killed in a suicide bomb attack in Suruc, near the Syrian border, according to the BBC. Mourners gathered in the courtyard of a mosque in the south-eastern city of Gaziantep to remember the victims. Each coffin was wrapped in red shrouds and included the name of the victim on it. On Monday, a suicide bombing hit southeastern Turkey leaving 32 people killed and nearly 100 other injured. Neither the Islamic State of Iraq and Syria (ISIS) nor any other group has claimed responsibility for the attack, which the Turkish government is blaming on ISIS. During the funerals, hundreds of mourners shouted slogans against the ISIS and chants critical of the government of President Recep Tayyip Erdogan, who opponents accuse of not doing enough to crack down on ISIS. The casualties, who were mainly university students or members of the Federation of Socialist Youth Associations, had been planning to travel to Syria to help rebuild the town of Kobane, according to the BBC. Turkish officials have said that they believe the attack was retaliation for Turkey's recent steps against ISIS militants Turkey has been a reluctant partner in a U.S.-led coalition fighting ISIS, refusing a frontline role in military action. The U.S. Air Force has not been allowed to fly any bombing sorties against Islamic State from its Incirlik base in southern Turkey; but it does use the airfield to launch drones.