The International Trade Union Confederation (ITUC) and its European counterpart the European Trade Union Confederation (ETUC) have written jointly to Libyan President Muammar Qaddafi to protest at the death sentences passed on five Bulgarian nurses, Kristiana Vulcheva, Nasya Nenova, Valentina Siropulo, Valya Chervensashka and Snezhana Dimitrova, and Palestinian doctor Ashraf al-Haiui.