ADVERTISEMENT Croatia has commemorated the victims of a World War II concentration camp where tens of thousands of people perished at the hands of the Nazi-installed puppet regime. Croatian officials and representatives of Serb, Jewish, Roma and antifascist organisations attended the ceremonies marking 80 years since hundreds of prisoners attempted a breakout on 22 April 1945. Only 92 people survived the attempt out of some 600 men, according to the Jasenovac memorial centre data. Prisoners at