New EU sanctions against Russia have gone into force, blocking loans for five big state banks and curbing EU business with oil and defence firms.
The aim is to keep pressure on Russia over its role in the Ukraine crisis. But the measures could be eased or lifted if a ceasefire in Ukraine holds.
Russian Foreign Minister Sergei Lavrov accused the EU of “taking a path towards undermining the peace process”.
Nato says Russia still has about 1,000 heavily armed troops in east Ukraine.