The service also marked the anniversary of the suffering and exodus of nearly 50,000 Serbs from the western Slavonia region, said Igor Pavkovic of the Serb National Council (SNV).
"We are remembering hundreds of Serb civilian victims, many of whom are still unaccounted-for. The location of graves, exhumation and identification of missing Serbs is slow and ineffective, and the right to the truth about the suffering and to a dignified commemoration and remembrance of the victims is denied," he said.
SNV president Milorad Pupovac said it was time to start remembering all the victims and coming together through such remembrance and commemoration.
"Everyone is doing it for themselves for now, the Croats mourn their victims and the Serbs remember theirs. One should also remember the exodus, whose consequences are huge. The bulk of the people haven't come back nor could have come back. It is our duty to also remember the policies that incited the exodus and made it impossible for people to come back," he said.
"Unfortunately, nobody has been held to account for the crimes committed against Serbs in western Slavonia in 1991 and 1995. No one has been held to account either for the destruction, expulsion and desecration of the monuments," added Pupovac.
The SNV extended its condolences and joined in the commemoration for the Croatian victims of the war crime committed in Vocin in December 1991.