US special envoy to the peace talks in Ukraine said that the ongoing fighting in the country should be regarded as a 'hot war' instead of a 'frozen conflict'.
Russian President Vladimir Putin, in an interview to mark 15 years in power, said he has no regrets over Moscow's 2014 annexation of Crimea as it overturned "a historical injustice."
Gorbachev warned that current international efforts to solve the Ukraine crisis were "unequal to the danger that threatens us all."
Putin once again expressed his displeasure over the toppling of Ukrainian Presidential Viktor Yanukovych but offered no insight into what Russia's next actions in eastern Ukraine could be.
News agency Interfax Ukraine said the problem had occurred at bloc No 3 - a 1,000-megawatt reactor - and the resulting lack of output had worsened the power crisis in the country.
The plan will enable NATO to meet "any threats from wherever they come", Stoltenberg said.
Outrage over the deaths of pro-Russian activists in riots in Odessa triggered new violence on Sunday in the Black Sea port, where a mob of protesters stormed police headquarters and freed dozens of their jailed allies.
The request comes from a government that has proved powerless to reign in separatists in the Russian-speaking east of the country, where insurgents have been occupying government offices in cities for the past week.
The security service said negotiations with the separatists were continuing and that parliament deputies had been able to enter and leave the building unhindered.
He blamed the crisis in Ukraine on the government's lack of respect for the citizens' rights and interests of different Ukrainian regions.
Earlier, a spokesman for the general prosecutor said 12 members of the disbanded 'Berkut' force had been detained on suspicion of shooting peaceful participants in the protests.
Russia annexed Crimea last month following a hastily called referendum held after Russian troops took control of the region. Ukraine and the West have rejected the move as illegal.
NATO had spotted signs of movement by a very small part of the Russian force overnight but had no indication that it was returning to barracks.
And from folklore to ancestral traditions, Ukraine has shown itself to possess a distinct identity.
Obama said if anyone in Russian leadership thought they could drive wedge between the Europe and the United States through its aggression, "they clearly miscalculated."
Introduced last week by the committee Chairman it promotes Ukraine's sovereignty and democratic institutions while sanctioning those who have sought to undermine it's independence and stability
Authorities in Ukraine have come under criticism for their often-hesitant reaction to Russia's annexation of Crimea, which was formalized following a hastily organized referendum this month.
Earlier this month, Russia staged a military exercise involving 8,500 soldiers near its border with Ukraine after the toppling of that country's pro-Moscow president Viktor Yanukovych amid a popular uprising and violent street clashes.
The Senate and House appear headed for a standoff over competing bills to authorize sanctions on Russia and provide aid to Ukraine, potentially prolonging Congress' inaction over the two weeks since Russian President Vladimir Putin's military intervention in the Crimean peninsula.