A Normandy Four summit can be held only after all previous agreements reached between the leaders are implemented, Russian Foreign Minister Sergei Lavrov said.

"We stand for the Normandy Four's active work, but not when these meetings end in agreements, which aren't implemented. Many times we provided examples related to the Normandy Four summit in Paris in 2015 and then in Berlin in 2016. A very specific agreement was reached during these summits, the leaders themselves determined on the map three populated localities, which the disengagement of forces and hardware should have taken place," Lavrov said.

The disengagement was conducted at the first two populated localities, but at the third one, Stanytsia Luhanska, the Ukrainian side is looking for any excuses to prevent that, he said. In particular, it said that a seven-day-long ceasefire observance is necessary for it.

"The OSCE mission has already announced 22 times that a seven-day-long complete ceasefire was recorded, and Ukrainian representatives said at once that this is the OSCE's statistics, while they recorded a couple of attacks," the minister said.

As for another agreement reached in Paris, on the Steinmeier formula of entry into force of the law on Donbas' special status, it has not been implemented as well, the Russian foreign minister said.

"This is why we asked our colleagues, who want to convene a Normandy Four high-level [meeting] again, to do that after all previous agreements are fulfilled at least out of respect to the heads of state," he said.