Pro-government forces conducted airstrikes on Islamist fighters on Dec. 21 as clashes for the Es Sider and Ras Lanuf oil ports continue. Libya Dawn was forced to retreat after a failed attempt to take the towns of Zultan and Al-Jmail. The Islamist rival government called on foreigners to return to Tripoli. Jihadists in Derna have banned smoking, declaring it haram and burning several tobacco shops.