MOSCOW, May 04 /ITAR-TASS/. Forces in the east of Ukraine fighting for the federalization of the country have regained control over the cities and townships of Konstantinovka, Slavyansk, Andreyevka, and Kramatorsk, Russia-24 television channel said.

As a result of an assault by the self-defense forces, Ukrainian military have had to pull back to the area of Kramatorsk airdrome, a report said.