The European Union has extended economic sanctions against Russia until January to keep pressure on Moscow over the conflict in eastern Ukraine.
The recent deaths of three Russian servicemen have raised serious questions about the Kremlin's claim that its military is not operating in Ukraine.
Two civilians in a government-controlled area of eastern Ukraine have been killed, authorities said, amid a surge of shelling as combat flared between the armed forces and separatist rebels.
Ukraine's president has said that almost 7,000 civilians have died and a thousand more remain unaccounted for as a result of the unrest that has gripped his country over the past year.
Ukraine’s president says government and Russian-backed separatist forces have pulled back the bulk of their artillery and rocket launchers from the front-line in the east, in compliance with a ceasefire deal.
Russian President Vladimir Putin has described a secret meeting with officials last year when Russia decided it would take Crimea – the Black Sea region that Moscow annexed from Ukraine last March.
Charismatic former deputy prime minister-turned Russian opposition leader Boris Nemtsov has been killed in a drive-by shooting on a Moscow bridge.
Ukraine’s military has said it will start pulling back its heavy weapons from the front line with Russian backed separatists as required under a ceasefire agreement.
Russia could cut off supplies to neighbouring Ukraine by the end of the week if it does not get further payments from the country, a spokesman for the gas company Gazprom has said.
Talks about a fragile peace deal for Ukraine have ended in tension, with differences over who is at fault over continued violence despite a ceasefire.
Ukraine’s latest ceasefire has “very significantly” lowered the level of military exchanges between the government and separatist forces, but abuses are still taking place and must end, the head of the Organisation for Security and Co-operation in Europe has said.
Ten people have been injured in an explosion at a march in Kharkiv, Ukraine’s second-largest city.
Ukraine has pulled most of its troops out of Debaltseve, president Petro Poroshenko says.
The UN Security Council has unanimously approved a Russian-drafted resolution that endorses the new ceasefire agreement on Ukraine and calls on all parties involved to carry it out.
Russian president Vladimir Putin has suggested that the United States is already delivering weapons to Ukraine.
Intense artillery exchanges between Ukrainian government forces and Russian-backed separatists have persisted around a strategic town in eastern Ukraine – fighting that threatens to dash a ceasefire deal brokered by European leaders last week.
A ceasefire that went into effect today in eastern Ukraine appears largely to be holding, except around the strategic railway hub of Debaltseve.
A number of artillery attacks have hit areas near the Ukrainian city of Mariupol, as the deadline for a ceasefire creeps closer, officials said.
The International Monetary Fund has agreed to provide Ukraine with €15.5bn to help support economic reforms.
Russian president Vladimir Putin has announced a ceasefire in eastern Ukraine from midnight on Saturday.
Leaders of Russia, Ukraine, France and Germany are struggling to reach a deal this morning in marathon talks aimed at ending fighting in eastern Ukraine.
Marathon talks on ending the war in Ukraine have lasted through the night amid reports that the leaders involved are preparing to sign an agreement.
There remain “quite a number of problems” in negotiations aimed at ending fighting in eastern Ukraine, according to the French foreign minister.
Fighting in eastern Ukraine has intensified ahead of much-anticipated peace talks, with both sides claiming significant advances and the government accusing rebels of shelling a town far behind the front line.
US President Barack Obama and German chancellor Angela Merkel have rallied behind efforts to reach a long-shot diplomatic resolution to the conflict between Russia and Ukraine, but offered no clear path if talks fail.
The European Union has decided to hold off temporarily on imposing sanctions on more Russians and Ukrainian separatists and await the outcome of possible peace talks later this week.
President Barack Obama and German chancellor Angela Merkel are trying for a public display of unity despite a potential split over arming Ukrainian fighters to fight Russian-backed separatists.
The Minister for Foreign Affairs, Charlie Flanagan, says Europe is considering further sanctions against Russia over its involvement in the Ukraine crisis.
Pro-Russia rebels and Ukrainian authorities have agreed on a humanitarian corridor to evacuate civilians from the epicentre of fighting in eastern Ukraine as German and French leaders prepare to take a peace plan to Moscow.
French president Francois Hollande has said he is taking a new peace initiative to Ukraine alongside German chancellor Angela Merkel.
At least five people have died after heavy shelling in rebel stronghold Donetsk in eastern Ukraine damaged a hospital, six schools and five nursery schools.
Artillery fire in eastern Ukraine has killed at least eight people and wounded 22 others in the past day, rebels in the separatist stronghold of Donetsk said.
A crowded open-air market and nearby homes in Ukraine’s coastal city of Mariupol came under rocket fire today, killing at least 16 people, city authorities said.
Police in Ukraine say 10 people have been killed following shelling in the eastern port of Mariupol.
Signs have emerged pointing to a major offensive in eastern Ukraine by rebels fighting to break off from the rest of the country.
Separatist forces in eastern Ukraine have deployed large quantities of arms and manpower to an emerging flashpoint, undermining hopes for a new peace initiative taking shape.
Pro-Russian rebels in eastern Ukraine have claimed to have seized control of the Donetsk airport after days of intense fighting.
Ukraine peace talks failed today as hostilities intensified between government forces and Russian-backed separatists in the east.
Talks aimed at reaching a stable ceasefire in Ukraine between its government forces and pro-Russian armed groups ended after more than five hours.
Government troops and Russian-backed separatists have largely suspended hostilities in east Ukraine in a fresh attempt to revive a largely ignored ceasefire deal.
Russian president Vladimir Putin has defended the Kremlin’s aggressive foreign policy, saying the actions are necessary for his country’s survival.
The leader of separatist rebels in eastern Ukraine has been officially sworn in after an election that was roundly condemned by the West as destabilising.
Two pro-European parties in Ukraine running on a platform to enact tough reforms have taken the lead in the Ukrainian parliamentary election.
Rebels in eastern Ukraine appear to be successfully closing in on the government-held airport in Donetsk, a strategic victory for the pro-Russian separatists that further undermines a shaky ceasefire in the region.
Ukraine's prime minister has urged the world not to lift sanctions against Russia until his country regains control over its entire territory, including Crimea.
Thousands of people marched through central Moscow today to demonstrate against the fighting in Ukraine and Russia’s alleged complicity in the conflict.
Shelling in rebel-held parts of east Ukraine killed at least 12 civilians as a top leader of pro-Russian rebels rejected Ukrainian legislation meant to end the unrest by granting self-rule to large swathes of the east.
A building has been hit by rocket fire in the eastern Ukraine city of Donetsk, killing at least one person and adding to the growing number of civilian casualties in the region despite a nearly two-week-old ceasefire.
Residents in the eastern Ukrainian city of Donetsk have come under repeated shelling despite a fragile ceasefire agreement imposed last week.
Clashes have broken out outside the main rebel-held city in eastern Ukraine, throwing the freshly forged ceasefire agreement between government troops and Russian-backed separatists into further doubt.
Witnesses in the Ukrainian port city of Mariupol reported sustained explosions outside the city last night, and a volunteer battalion of Ukrainian fighters says Grad rockets were fired at its positions.
The European Union will today unveil a fresh raft of economic sanctions against Russia in a show of support by Western leaders for the beleaguered government of Ukraine.
The European Union is set to unveil a fresh package of sanctions against Russia as western leaders staged a show of support for the beleaguered Ukrainian government.
The European Union is set to unveil a fresh package of sanctions against Russia as western leaders staged a show of support for the Ukrainian government.
Ukraine and the pro-Russian separatists appear increasingly close to signing a deal to end four months of fighting.
Lashing out at Russia, President Barack Obama has cast Moscow’s aggression in Ukraine as a threat to peace in Europe.
Vladimir Putin has called on Russian-backed insurgents in eastern Ukraine to “stop advancing” and urged the Ukrainian army to withdraw their troops from the region.
Ukrainian president Petro Poroshenko said he and Russian president Vladimir Putin have reached agreement on a ceasefire in eastern Ukraine.
A Russian official has complained that EU Commission president Jose Manuel Barroso breached confidentiality when he quoted President Vladimir Putin as saying that Moscow could take over Kiev in two weeks if it wished.
A border guard vessel has been attacked by land-based forces, Ukraine said, hours after Russian president Vladimir Putin called for immediate talks on a political solution to the crisis in the east of the country.