Flowers and candles mark the spot where Boris Nemtsov was shot dead in Moscow on Friday night. Photograph: EPA

Opposition supporters will march through Moscow on Sunday in memory of Kremlin critic Boris Nemtsov, whose murder has increased concern about Russia’(...)

Police experts inspect the area close to a body following an explosion during a “Dignity March” in the  Ukrainian city of Kharkiv.   Photograph: Sergey Bobok/AFP/Getty Images

A deadly bomb blast in Ukraine’s second city and claims that Moscow is still sending heavy weapons to separatist insurgents in the country have under(...)

Protesters carry a banner reading: ‘The Wolves of Russian Spring’ during an ‘Anti-Maidan’ rally on February 21st in Moscow against the 2014 Kiev uprising which ousted Ukraine president Viktor Yanukovich. Photograph: EPA/SERGEI ILNITSKY

Former Ukrainian president Viktor Yanukovich, who fled to Russia a year ago after being toppled by months of street protests, said he was ready to ret(...)

Ukrainians in Independence Square in Kiev yesterday for the commemoration ceremony for Maidan activists who were killed during anti-government protests in 2014. Photograph: EPA/Roman Pilipey

Ukraine says a close adviser of Russian president Vladimir Putin sent snipers to conduct the mass shootings in Kiev that brought its pro-western revo(...)

A pro-Russian separatist feeds a cat in the rebel-held town of Uglegorsk, not far from Debaltseve. Photograph: Alexander Ermochenko/EPA 1:44

European leaders have sought to relaunch a ceasefire in eastern Ukraine, despite continued fighting between Kiev’s forces and Kremlin-backed insurgen(...)

What prospect now for the Minsk accord? The shambolic retreat under heavy fire of Ukrainian forces from the strategically important Debaltseve must be(...)

 A man  in military uniform kisses a cross presented to him by a Ukrainian Orthodox priest after a commemoration ceremony for Maidan activists or ‘Heroes of the Heavenly Hundred’, who were killed on the Maidan during anti-government protests in Kiev last year. Photograph: Roman Pilipey/EPA. 1:44

Fighting continued in eastern Ukraine on Thursday despite European efforts to resurrect a ceasefire, a day after pro-Russian separatists spurned the (...)

Ukrainian servicemen in retreat from the area around Debaltseve, in eastern Ukraine on Wednesday after a fierce assault by Russian-backed separatists which the EU said violated a crumbling ceasefire. Photograph: Gleb Garanich/Reuters 1:44

Separatists in eastern Ukraine have captured a strategic transport hub from government forces, putting huge pressure on Kiev’s leaders but apparently (...)

Ukrainian servicemen ride on top of an armoured personnel carrier on the way from Artemivsk to Debaltseve. Photograph: Anatoli Stepanolli/AFP 1:21

Ukraine pulled thousands of troops out of an encircled town on Wednesday after a massive assault by pro-Russian rebels, who ignored a new ceasefire to(...)

A pro-Russian rebel carries ammunition  near the eastern Ukrainian city of Debaltseve. The loss of the city, a major road and rail junction between the rebel-held cities of Donetsk and Luhansk, would be a severe blow to Kiev’s pro-western leaders. Photograph: Vasily Maximov/AFP/Getty  1:21

Ukraine has called on the world to “stop the aggressor” after Russian-backed separatists claimed to have seized most of a key town in eastern Ukraine(...)