Photo Gallery Laying Srebrenica to Rest

On Sunday 775 new coffins belonging to victims of the 1995 Srebrenica massacre were buried on the 15th anniversary of the atrocity.

The burial and anniversary was attended by around 50,000 people. European leaders, including the Turkish prime minister, the French foreign minister and representatives of the European Union were present.

A message from US President Barack Obama urged "governments to redouble their efforts" and arrest those responsible for the war crimes at Srebrenica.

Serbian President Boris Tadic also attended the anniversary and although some saw his visit as controversial -- the Serbian government only apologized officially for the massacre in March of this year.

Bosnian Serb general Ratko Mladic, who led forces into Srebrenica and gave the orders for the massacre, is still at large.

Over the past few years, forensic experts have exhumed the remains of over 4,500 victims in order to identify them. Every year more remains are identified and reunited with family members.

Muslim women mourn by the coffin of their relative, one of the 775 newly identified victims of the 1995 Srebrenica massacre.

Family memebers of the victims of the massacre marched in the streets of Sarajevo, Bosnia on Sunday.

The massacre was also remembered in Berlin, where a "pillar of shame" was erected at the Brandenburg Gate. The UN has said that Srebrenica is one of the darkest chapters in its history.