Rwanda's parliament has voted to abolish the death penalty, a move that should clear the way for suspects in the 1994 genocide to be extradited back to Rwanda.

Rwanda says many of the remaining suspects accused of involvement in the killings of 800,000 ethnic Tutsis and Hutu moderates are at large in Europe, North America and West Africa.

Many countries refuse to extradite criminal suspects to nations that practise capital punishment or torture.