"There can be no settlement" without involving Kyiv, Bridget Phillipson tells BBC's Sunday With Laura Kuenssberg.
In August 2000, two explosions led Russian nuclear submarine Kursk to sink, claiming the lives of all 118 crew members.
President Vladimir Putin on Sunday appointed the chief of Russia's sovereign wealth fund, Kirill Dmitriev, as a special envoy on international economic and investment cooperation, according to a decree quoted by Russian news agencies.
But, from Mr Putin’s point of view, he had good reason to be part of it. As the boss of one of Russia’s state-backed investment funds, Mr Dmitriev has been cutting deals for more than a decade. Mr Putin wants America to loosen sanctions on his economy.
A mix of stories lead Friday's newspaper front pages, including the latest in the rift between the US and Ukraine.
Oklahoma Republican Sen. Markwayne Mullin told NBC's "Meet The Press" that he agrees with the Trump administration that the U.S. should only remain part of the NATO Alliance as long as it is in our national interest: SEN.
Kirill Dmitriev, head of the Russian Direct Investment Fund, has gained significant access to Vladimir Putin's inner circle through his personal relationships.
As U.S. and Russian negotiators work to secure a ceasefire in Ukraine, Kirill Dmitriev will be trying his best to secure the best deal for Vladimir Putin.
Kremlin leader Vladimir Putin on Tuesday appointed the former head of Russia's space agency, Yuri Borisov, as special presidential representative for international space cooperation.
Denmark announced its biggest military investment in half a century, speeding up arms purchases by dropping the usual tender processes and enabling the head of the armed forces to decide how the money is spent.