Kiev, April 19 - Ukraine's acting Foreign Minister Andriy Deshchytsya Friday acknowledged the progress achieved in Geneva during the four-party talks over Ukraine crisis, but said some differences still remained.

"Russia agreed to facilitate de-escalation of the situation in the eastern regions," Xinhua quoted Deshchytsya as telling media.

Top diplomats from Ukraine, Russia, the US and the European Union reached a deal Thursday to defuse the ongoing crisis in eastern Ukraine and resolve dispute between Kiev and Moscow on the issue.

Deshchytsya said the sides have reached a compromise on some crucial issues, including implementation of far-reaching constitutional reform in Ukraine and amnesty to pro-Russian protesters.

There were, however, some stumbling blocks during the negotiations, Deshchytsya said, pointing out the divergence between Moscow and Kiev over Ukraine's political and military status.

The two post-Soviet neighbours also have different positions on Crimea's integration into Russia and on Moscow's involvement in unrest in eastern Ukraine, he added.

The unrest in Ukraine's Russian-speaking east occurred after Russia annexed the Ukrainian peninsula of Crimea March 18 following a referendum.

A new wave of violence erupted in the country's east over the weekend, as pro-Moscow activists seized several administrative buildings in nearly 10 eastern cities. The sought a referendum on autonomy and closer ties with Russia. (IANS)