nadine barber reports. >> in november 2013 the protests in kiev were about president viktor yanukovych refusing to sign an association agreement with the european union. soon it turned to something else. the excessive use of force by the police and other security forces led to a significant radicalization of the protest movement, calling for an investigation into the deaths of 121 people, including 121 protesters, police and other officers between december and february. the report says the interim government should ensure accountability for all human rights violations, independent investigations, prosecutions, sanctions of those responsible for the violations. >> the u.n. team looked at the situation in crimea. the report says measures by the new crimea authorities make it difficult for people who want to keep ukrainian citizenship to stay. the unhcr says permitting forces carry out security operations violates human rights. they should, he says, disarm and disband paramilitary units, and enshaw law enforcement is carried out by the police. >> the situation in the east of ukraine is te

na nadine barber.jazeera, paris. >> earlier, i spoke with linda melvern about whether there should be a formal investigation into why western countries failed to act in rwanda? >> absolutelition i think there should be inquiries. there has been no inquiry at all in the u.s. or in the u.k. about why this failure happened the decision taken on april 21st to withdraw the peace keepers sent a signal to the extremists. there has been no adequate inquiry in france. they were involved with the regime that planned the genocide and is senior officers imbedded in parts of the rwandan army. there is no satisfactory explanation from france to this day. >> 92 people were indicted. 83 of them were brought to court, but 9 have never been found. for much more on the anniversary of the rwandan massacre join us at 8 eastern, 5 passiffic right here on al jazeera sergeants ukraine's interim leaders are pushing back to russia's move to nearly double the price of natural gas. yakhouba accused moscow of economic aggression.