AUSTRIA ACCIDENTRescue workers stand at the accident site with remains of two gliders , 28 August 2011 . Two gliders collided on Sunday afternoon in Zell am See in Salzburg according to Red Cross Pinzgau , three people were killed . EPA / FRANZ NEUMAYER < 모바일 애플리케이션 > < 포토 매거진 >< 저작권자 ( c ) 연합뉴스 . 무단 전재 - 재배 포금 지 . >