Ukraine's President Petro Poroshenko has made a call for peace following one-to-one talks in Belarus with Russia's President Vladimir Putin over the conflict wracking eastern Ukraine.
"Our main goal is peace. We demand resolute actions that will bring peace to the Ukrainian land," he said in a statement on his official website early Wednesday, reports GHN based on CNN.
It's not yet clear how the apparent diplomatic progress will translate into a halt in fighting on the ground.
Ukraine's National Defense and Security Council told reporters at a briefing Wednesday that Russian forces were directing massive artillery fire over the border at the town of Novoazovsk, in the south of the Donetsk region.
Russian forces and pro-Russia rebels have seized villages around the town, the NSDC said.
The NDSC also claimed that a Russian tactical battalion was present in the village of Pobeda, in Ukraine's Luhansk region.
"If these troops got lost and accidentally found themselves in Ukraine as well, they should go back East," the update said.
On Tuesday, Ukraine's Security Service said it had detained 10 Russian soldiers in Ukraine. Russian state media cited a source in the Russian Defense Ministry as saying the soldiers had been patrolling the border and "most likely crossed by accident" at an unmarked point.
Moscow has repeatedly denied allegations by Kiev that it has sent troops over the border.