21 days before polling day on 10 October 2015, two suicide bombers targeted attendants at a peace rally taking place outside Ankara Central railway station, killing 97 people and injuring over 500 others according to some reports.[39] It was the deadliest terrorist attack in Turkish modern history, causing waves of public protests accusing the government of implicitly supporting and not doing enough to combat organisations such as the Islamic State of Iraq and the Levant (ISIL).[40][41] The government denied the claims and announced three days of public mourning, while the pro-Kurdish Peoples' Democratic Party (HDP) blamed the governing AKP for the attack.[42] The bombings also raised concern over how suicide bombers managed to evade security measures to detonate two bombs in the centre of the capital, with the precise location of the attack in close proximity to the National Intelligence Organisation (MİT) headquarters.[43]