The majority Albanian population fled Pristina in large numbers to escape Serb policy and paramilitary units. The first NATO troops to enter the city in early June 1999 were Norwegian special forces from FSK Forsvarets Spesialkommando and soldiers from the British Special Air Service 22 S.A.S, although to NATO's diplomatic embarrassment Russian troops arrived first at the airport. Apartments were occupied illegally and the Roma quarters behind the city park was torched. Several strategic targets in Pristina were attacked by NATO during the war, but serious physical damage appears to have largely been restricted to a few specific neighbourhoods shelled by Yugoslav security forces. At the end of the war the Serbs became victims of violence committed by Kosovo Albanian extremists. On numerous occasions Serbs were killed by mobs of Kosovo Albanian extremists for merely speaking Serbian in public or being identified as a Serb. Violence reached its pinnacle in 2004 when Kosovo Albanian extremists were moving from apartment block to apartment block attacking and ransacking the residences of remaining Serbs. A majority of the city's 45,000 Serb inhabitants fled from Kosovo and today only several dozen remain in the city.