SREBRENICA: Tens of thousands on Sunday mark 15 years since the Srebrenica massacre of nearly 8,000 Muslims by Bosnian Serbs, the darkest episode of the violent break-up of Yugoslavia.

A special ceremony at the Potocari cemetery near Srebrenica, attended notably by Serbian President Boris Tadic and Turkish Prime Minister Recep Tayyip Erdogan, will include the burial of 775 recently identified victims who will join the 3,749 already there.

On Saturday emotions ran high in the graveyard as the hundreds of coffins of those due to be buried arrived. In the hot midday sun a line of men formed to pass the coffins to the front.

On a small incline overlooking the cemetery Ekrem Muhic sat with his family. He arrived in Potocari after hiking for three days through the woods with a group of around 5,000 people who retraced the path of the men and boys who fled the enclave ahead of the advancing Serb troops.

"I walked for my brother who will be buried (Sunday). I walked in his place. We left together from Srebrenica but he didn`t come back and I made it," he said.

Nearly 8,000 Bosnian Muslim men and boys were systematically killed in the days following the fall of the Srebrenica enclave, designated a UN safe area, to Bosnian Serb troops on July 11, 1995.

The massacre is the only episode of the ethnic conflicts that followed the breakaway from Serbia of other members of the Yugoslav federation in the 1990s to have been deemed a genocide by the UN war crimes court and the International Court of Justice, the UN`s top court.

The victims were shot and interred in mass graves, then reburied haphazardly later in more than 70 sites in a bid to cover up the evidence.

The bones, exhumed by forensic experts over the last few years, were buried in Potocari after identification by DNA testing.

To date, the remains of nearly 6,500 people have been identified, some of them found in more than one grave, but many families are waiting to bury them in the hope that more bones, or those of another relative, will turn up.

Hasan and Suhra Mahic both in their eighties will finally bury their sons Fuad and Suad together on Sunday.

"I would have preferred that all of us have been killed together, then we would not have had to live through this," Hasan told AFP.

The presence of Serbia`s president Tadic at Sunday`s commemoration remains a sore point for many survivors who point out that Ratko Mladic, the fugitive Bosnian Serb wartime military commander charged with genocide by the UN war crimes court, is still believed to be hiding in Serbia.

The other alleged mastermind behind the Bosnian Serb campaign of ethnic cleansing and the Srebrenica killings, political leader Radovan Karadzic, was arrested in Belgrade in 2008.

He is currently on trial for genocide before the International Criminal Tribunal for the former Yugoslavia (ICTY).

BDST:0912 HRS , July 11, 2010