An explosive device detonated July 18 outside an airport in Burgas, Bulgaria. The attack targeted tour buses carrying Israeli citizens. Reports indicate that up to eight individuals were killed in the attack and that as many as three buses were damaged by the blast. The extent of the damage is unclear, but pictures of the scene suggest that the explosion was relatively small and that most of the damage was caused by resulting fire, so few if any additional casualties are expected. So far, available details suggest the attack is part an ongoing trend in which Hezbollah militants target Israelis abroad. Indeed, Israeli citizens have been subject to several attacks that Israeli and local authorities blame on Iranian-backed Hezbollah operatives.