Tributes paid after former Greek PM Costas Simitis dies aged 88

Four days of mourning declared for death of Pasok party co-founder, the architect of country's entry into euro

Tributes have been paid to the former socialist prime minister Costas Simitis, who with dogged determination guided Greece into the eurozone and took the vital steps to ensure it was ready to host the 2004 Athens Olympic Games.

News of Simitis's death at the age of 88 was met on Sunday with outpourings from across the political spectrum, with friends and foes alike voicing admiration for a man credited with overseeing some of the country's most momentous changes.