This is the second time in less than seven months that the infrastructure has been hit. Damascus International Airport was out of service on Monday morning due to an overnight Israeli attack targeting Iranian-backed armed groups and Lebanese Hezbollah fighters. “Four fighters, including two Syrian soldiers, were killed by the Israeli bombardment,” said Rami Abdul , head of the Syrian Observatory for Human Rights (OSDH), a UK-based organization. He was unable to specify the nationality of the other two killed. The official Syrian agency Sana, citing a military source, for its part said that two Syrian soldiers had died in this attack. "The Israeli enemy carried out an air assault using a barrage of missiles, targeting Damascus International Airport and its surroundings", and causing "the death of two soldiers, the wounding of two others" and property damage, the agency said. The airport is “out of service,” she added. According to the head of the OSDH, the Israeli attack targeted "positions of Hezbollah and pro-Iranian groups in the airport and its surroundings, including an arms depot". Since the beginning of the civil war in Syria in 2011, Israel has carried out hundreds of airstrikes in its neighbor, targeting positions of the Syrian army, pro-Iranian forces and Lebanese Hezbollah. Israel rarely comments on its strikes against Syria but says it will not allow Iran to expand its influence in Syria.