A new website to issue warnings towards aviation risks over the conflicts zones, was launched by the UN Wednesday, where it included Libya , Iraq , Egypt and South Sudan . The UN site was established after the downing of a Malaysian Airlines flight over conflict zones in East Ukraine, last year. The site started to serve April under the supervision of the UN International Civil Aviation Organization ( ICAO ) . The initial warnings came from through UK concerning anti-air missiles in Libya, Iraq, Sinai peninsula in Egypt . The decision of blockage of airspace depends on each country separately, while the aim of these warnings is to for Airlines to use available information for its aviation routes . UK stated that there are aviation risks at the altitude of less than 25000 feet over South Sudan.