Cambodian guerrillas Monday renewed their criticism of Vietnam during talks aimed at ending a decade of fighting in Cambodia.
A senior delegate, who spoke on condition of anonymity, said there was no progress at Monday's sessions.
Indonesia's foreign minister, Ali Alatas, who organized the talks, declined to comment on whether he remained optimistic that the talks would help bring peace to Cambodia.
Prince Norodom Ranariddh, the son of Cambodian resistance leader Prince Norodom Sihanouk, said the talks would fail because the solution lay with the Soviet Union and China.
Vietnam invaded Cambodia in 1978 and installed a government of its choosing. The Soviets arm the Vietnamese occupants, estimated at up to 70,000 troops, while the Chinese support the guerrillas.