Complex sentence: Due to the 2011 Libyan civil war all flights were suspended however since the end of the conflict Libyan Airlines have resumed service, it is currently unknown if Tibesti Air Libya is using the airport.
Split into simpler sentences: Due to the Libyan Civil War (2011) all flights were suspended; however, since the end of the conflict, Libyan Airlines have resumed service. It is currently unknown if Tibesti Air Libya is using the airport.