Saudi Arabia's King Salman said on Saturday that attacks on Saudi oil assets last month by Iran-backed groups are a threat to global oil supplies and regional security. "The drone attacks on Saudi oil pumping stations carried out by groups supported by Iran not only threaten the security of the kingdom and the Gulf, but also threaten maritime safety and global oil supplies," Salman said at an Organisation of Islamic Cooperation (OIC) summit in the Saudi city of Mecca. This is the third meeting of Arab leaders the king has held in Mecca this week. On Friday Salman convened emergency summits ...