Russian jet fighters fly over a bridge connecting the Russian mainland with the Crimean peninsula with a cargo ship beneath it after three Ukrainian navy vessels was stopped by Russia from entering the Sea of Azov via the Kerch Strait in the Black Sea, Crimea. File photograph: Pavlishak Alexey/Reuters

Ukraine accused Russia of illegally seizing three of its ships in the Black Sea after opening fire on them on Sunday, a charge that if confirmed coul(...)

The unnamed teenager  suspected of detonating a home-made bomb in the lobby of an office of the Russian Federal Security Service   in Arkhangelsk.  Photograph: Reuters

Russia opened an investigation into suspected terrorism after a 17-year-old youth blew himself up on Wednesday in the lobby of an office belonging to (...)

File photograph of Sergei Skripal at a hearing at the Moscow military district court, Russia, in August 2006. File photograph: Kommersant/Yuri Senatorov via Reuters

The former Russian spy Sergei Skripal was deliberately poisoned with a nerve agent in a case that is now being treated as attempted murder, the police(...)

US defence secretary Jim Mattis: “We are not in a position right now to collaborate on a military level.” Photograph: Francois Lenoir/Reuters

US president Donald Trump’s defence secretary on Thursday said he did not see the conditions for military collaboration with Russia, in a blow to Mosc(...)

Ukrainian film-maker Oleg Sentsov looks on from a defendants’ cage as he attends a court hearing in Rostov-on-Don, Russia. Photograph: Sergey Pivovarov/Reuters

A military court in Russia jailed Oleg Sentsov, a Ukrainian film-maker, for 20 years yesterday for allegedly plotting terrorist attacks in Crimea, as (...)

Men  examining their new Russian passports shortly after they received them at an office of the Russian federal migration service in the Crimean city of Simferopol on Thursday. Photograph: Reuters

Kiev has blamed its former president Viktor Yanukovich and Russian security services for the use of deadly force against protesters in February(...)

A Greenpeace International activist attempts to scale the Gazprom-owned Prirazlomnaya oil platform during a protest in the Pechora Sea this week. Photograph: Denis Sinyakov/Greenpeace handout

The Russian coast guard is towing a Greenpeace ship toward the nearest port after armed officers stormed it following a protest against oil drilling i(...)