The 2014 student protest in Kosovo demanded the resignation or dismissal of the University of Pristina Rector. Students threw red paint and rocks at the Kosovo Police who responded with tear gas. 30 Kosovo Police officers were injured and more than 30 students were arrested. The upper airspace over Kosovo, skies over 10,000 feet, was re-opened for civilian traffic overflights on 3 April 2014. This followed a decision by the North Atlantic Council to accept the offer by the Government of Hungary to act as a technical enabler through its national air navigation service provider, Hungarocontrol.