United States Ambassador to the United Nations Samantha Power has said that the extension of custodial terms against Ukrainian pilot Nadia Savchenko, who is charged in Russia with the murders of Russian journalists in eastern Ukraine in 2014, is a terrible injustice.

"Russia extends Nadia Savchenko detention by another 6 [months]. Terrible injustice; her detention flies in the face of the Minsk agreements," Power said on Twitter on Thursday.

As reported, on September 15, the Donetsk City Court in Russia's southern Rostov region ruled in favor of a prosecutors' petition and agreed to prolong the custodial terms of Ukrainian pilot Nadia Savchenko for six months.