Tens of thousands of people are pouring into Srebrenica to mark the 20th anniversary of Europe's worst massacre since the Holocaust and to attend the funeral of 136 newly found victims.

Dozens of foreign dignitaries — including former U.S. President Bill Clinton, Turkish Prime Minister Ahmet Davutoglu, Britain's Princess Anne and Jordan's Queen Noor — will join Saturday's ceremony mourning the 8,000 Muslim men and boys killed in the eastern Bosnian town of Srebrenica after Bosnian Serb troops overran the U.N. protected enclave in July 1995. The crime was later defined as an act of genocide by two international courts.

Families will lay the remains of 136 victims to rest at a memorial center next to the graves of over 6,000 previously found in mass graves.