 In April 2019, Haftar's army launched an offensive to take Tripoli from the UN-backed Government of National Accord, during which Air Force planes loyal to the GNA attacked LNA positions.In response to pro-GNA Libyan air force strikes on LNA positions during April 6, Haftar's pro-LNA forces declared a no-fly zone over entire Western Libya on that same day, and on April 7 pro-LNA Libyan air force started conducting numerous airstrikes on pro-GNA positions across western Libya.On 8 April 2019, a series of airstrikes was carried out by both pro-LNA and pro-GNA air forces—pro-GNA fighter jets bombed on that day the pro-LNA al-Watiya air force base, 130 kilometers south of Tripoli, and in response to that attack pro-LNA MiG-21 fighter jets launched from that same air force base successfully bombed the pro-GNA Mitiga International Airport in Tripoli, damaging it, and after this pro-LNA bombing raid, the Mitiga International Airport was temporarily closed between April 8 and April 10—during those airstrikes at Mitiga airport, pro-LNA air forces reportedly damaged one pro-GNA air force CH-47 Chinook helicopter on the ground.