Spain began demanding answers on Thursday after the toll from the country's second high-speed train collision this year rose to 69 people, with scores injured and distraught relatives desperately seeking news about their loved ones. One of Europe's deadliest rail disasters this century struck south of Madrid on Wednesday morning when a service by state operator Renfe ploughed into the back of a stationary train belonging to private Spanish company Iryo. FRANCE 24's Sarah Morris reports from Madrid, Spain.