At least 100 staff at the United Nations Khmer Rouge tribunal in Cambodia are to go on strike over unpaid wages from Sunday.
The court is preparing for closing arguments in the case against two surviving leaders of the Pol Pot regime which ruled from 1975-1979. Both deny charges of war crimes, genocide and crimes against humanity.
Spokesman Neth Pheaktra said at least 100 of the 250 Cambodian staff have not been paid since June.
The ABC reports the tribunal has been frequently short of funds since it was set up in 2006. The Cambodian side of the tribunal urgently needs around $US3 million to cover costs for 2013.
''Voluntary contributions on which the court depends have run dry. The very survival of the court (is) now in question,'' said UN Secretary-General Ban Ki-moon in a statement.
"Financial failure would be a tragedy for the people of Cambodia, who have waited so long for justice.''
