"We've got an invitation to visit Paris and meet President Macron on [June] 26," Poroshenko said at a joint press conference with President of the European Council Donald Tusk in Brussels on Thursday, June 22.

"We thank him for the first step, for a very responsible pro-European position," he said.

Read alsoFrance says worried by Ukraine crisis, demands guarantees for observers – ReutersPoroshenko also announced Normandy Four leaders' telephone conversation scheduled for next week.

Macron earlier announced a new Normandy Four meeting, which is expected in the coming weeks. "Before the G20 summit [in Hamburg, Germany, on July 7-8], we will have a meeting under this format," Macron said in an interview with eight European newspapers on June 21.

Macron said it was too early to give his views on the crisis, but said there was a duty to protect Europe and its allies in the region. "On this we will not give an inch," he added.