Thousands of people from Bosnia and around the world are gathering in Srebrenica to mark the 30th anniversary of the massacre of more than 8,000 Bosniak Muslim boys and men.

The Srebrenica massacre remains the most notorious war crime committed in Europe since World War Two. Bosnian-Serb forces overran Srebrenica in eastern Bosnia, where thousands of Bosniaks, who are mostly Muslim, had taken refuge, believing they were safely under the protection of the United Nations.