Ukraine's Interior Ministry

Dozens of people were killed in a massive bombing in Kharkiv on Monday, Ukraine's Interior Ministry reported, citing Sky News. The news comes shortly after the start of negotiations between the official delegations from Moscow and Kyiv, which met at the Ukrainian-Belarusian border.

At least seven people have died in Friday's clashes Ukraine's port city of Mariupol, according to local officials.

The injured were 39, according to the healthcare department at Donetsk's administration.

Latest data comes amid conflicting reports on the incident in the south Ukrainian city.

Troops sent by Kiev as part of an "anti-terrorist" operation in eastern Ukraine have made progress retaking seized buildings in the port of Mariupol.

Wednesday's developments follow the entering of 10 army tanks and armored vehicles into Mariupol, which was revealed by witnesses cited by local media.

Ukraine's Interior Ministry reports to have eliminated three roadblocks set up by pro-Russian supporters in Slaviansk, Donetsk region.

"The roadblocks near Slaviansk have been eliminated by antiterrorist center forces in an antiterrorist operation at about 5 AM on April 30", the Interior Ministry said, quoted by Interfax.