Ukrainian President Petro Poroshenkop agreed on Wednesday to a new ceasefire for the country's conflict-ridden eastern regions, German Foreign Minister Frank-Walter Steinmeier said after meeting with Poroshenko.
If the Ukrainian military and the pro-Russian rebels observe the ceasefire for more than a week, there will be a chance to achieve a long-term separation of the warring sides, Steinmeier said in comments carried by news agency UNIAN.
On Tuesday, the leaders of the two major pro-Russian separatist groups in eastern Ukraine announced that they would ban their militias from opening fire on the Ukrainian military, starting at midnight on Wednesday.
The new ceasefire follows an escalation of violence in recent weeks amid heightened tensions between Russia and Ukraine.
Both countries put troops on full combat alert last month after Russia accused Ukrainian forces of planning attacks in the Crimea region.
Russia occupied and annexed Crimea from Ukraine two years ago in response to Kiev ousting its pro-Russian president amid mass protests calling for closer ties with the West.
Russia has since supported the simmering separatist rebellion in Ukraine's two easternmost regions, Donetsk and Luhansk, but has denied allegations that it has provided weapons and troops for the revolt.
More than 9,000 people have been killed in the conflict, according to estimates by the United Nations.