Militants fighting against the Syrian government have fired rocket - propelled grenades at residential areas in al - Sqalbyeh city in Hama countryside, killing at least three civilians and injuring four others.According to a Syrian security official, who spoke on condition of anonymity, the deadly attack, which took place on Tuesday, has caused material damage to shops and houses in the area. The injured were rushed to a nearby hospital for medical treatment. On Monday, three people including a woman and a child were wounded in Syria after foreign-backed militants fired mortar shells at civilian areas in the capital, Damascus. One mortar shell hit the Al-Hassan mosque in the Abu Rummaneh neighborhood, injuring one person and inflicting great damage to the minaret of the mosque, Syria’s official news agency SANA reported. Two other people, a woman and her child, were injured after the militants fired two other mortar shells near the Umayyad square in the centre of the capital. Last week, 14 Syrian civilians including four children, were killed in a mortar attack in Mleha district, southeast of Damascus. On August 8, nearly 20 people were injured in a mortar attack which targeted the holy shrine of Hazrat Zaynab (AS), the daughter of the first Imam of Shia Muslims, Imam Ali (peace be upon him) and the granddaughter of Prophet Muhammad (peace be upon him), near the capital. The site also came under a terrorist attack on July 19. Takfiris fired several mortar shells at the shrine, killing a custodian. Turmoil has gripped Syria for more than two years now. The United Nations says more than 100,000 people have been killed and a total of 7.8 million displaced due to the foreign-backed militancy in Syria. Over 1.8 million of the displaced Syrians are living in neighboring countries, mainly in Iraq, Jordan and Lebanon.