This is the youngest miner who died this morning: I heard sirens and I knew tragedy happened, says his brother

Miners Darko Zlatkovic (43), Nenad Trivunac (37), Radovan Grujic (47), Petar Petrovic (31), Branko Cokorilo (56), Branislav Zlatanovic (55), Bratislav Zivkovic (59) and Bojan Stajic (34) died in the accident