The first attack took place December 29 when a suicide bomber detonated explosives at the security entrance of the city’s main train station; the second occurred a day later when a bomb ripped apart a trolley bus.

第一次袭击发生在 12 月 29 日， 当时一名自杀式炸弹袭击者在该市主要火车站的安全入口处引爆了炸药；第二次发生在一天后， 一枚炸弹炸毁了一辆无轨电车。