 Also, Haftar's pro-LNA forces are well armed with many ZPU-2 and ZU-23-2 anti-aircraft gun installations, as well as with at least one Kvadrat/2K12 Kub/SA-6 medium-range anti-air missile defence systems, and a variety of different MANPADs.Further airstrikes were made by both pro-GNA and pro-LNA air force aircraft throughout western Libya between April 8 and April 13, with pro-GNA fighter jets targeting pro-LNA advancing troops near Sirte, Tripoli International Airport, Gharyan and at the outskirts of Tripoli, while pro-LNA fighter jets targeted pro-GNA positions at Misrata, Tripoli International airport and throughout the city of Tripoli.On April 10, during heavy fighting south of Tripoli, pro-LNA military 166th brigade claimed to have shot down with a ZU-23-2 anti-aircraft gun a pro-GNA L-39ZO Albatros fighter jet, which flew from the Misrata air force base.