Pro-Russian activists in Donetsk declared the creation of the Donetsk People's Republic on April 7, according to KyivPost.

The declaration of independence reads that “the people of Donetsk People's Republic have an exclusive right for its land, subsoil, air space, water and other natural resources” and that the republic has a right for an independent financial, economic and other policies.

Crimea's Prime Minister Serhiy Aksyonov tweeted that a referendum for Donetsk Oblast independence will be held on May 11.

Segodnya daily also quoted the separatists inside the building as saying that the date has been agreed with Luhansk and Kharkiv movements.

“If we're impeded in holding a referendum, we will turn to Russia and ask them to move in their troops,” the newspaper quoted a separatist as saying.