Cambodia's Second Prime Minister Hun Sen and his security forces continue to kill people for their political beliefs, casting doubt on how fair the country's upcoming July elections will be, said Rory Mungoven, program director of Amnesty International's Asia and Pacific region.

In a Tokyo press conference Monday, Mungoven said the international community, however, is turning a cold shoulder to the situation by supporting a Japanese peace proposal, which he says disregards human rights.

Cambodian government officials argue that all deaths resulted from the fighting following Hun Sen's coup d'etat in July. Mungoven, however, said evidence gathered by Amnesty International proves otherwise.