A tentative deal for a cease fire was reached, but the two sides have a very different picture of the situation on the ground.
Ukraine and Nato say troops and tanks are flowing from Russia into the area occupied by separatists. Russia's president Putin says he is not involvled with the conflict, but will try to use his influence with the self-proclaimed rebels.
An EU summit is just starting, and outside the meeting Sweden's Stefan Löfven says to news agency TT he has read the cease-fire, and that there are details which need to be clarified.
"All honour to Angela Merkel and Francois Hollande for their work", says Löfven.
At the summit the head of the EU foreign policy service said they are unlikely to discuss more economic sanctions against Russia, despite its continued occupation of Ukraine's Crimea.