Beirut, June 10 (IANS) The Lebanese Shia militant party Hezbollah said a "prominent leader" of the Islamic State (IS) was killed on Tuesday in the Qalamoun region adjacent to the country's eastern border with Syria. "Saudi national Walid Abdel Mohsen al-Omari was killed by Hezbollah fire when the party's long range artillery shelled a jihadi post in the Shobat al-Mahbas region on the outskirts of Ras Baalbeck town", Xinhua reported citing al-Manar TV. The TV station said that Hezbollah on Tuesday repelled an attack by IS gunmen on the outskirts of al-Qaa and Ras Baalbek towns near Syria's border.