Russia’s Gazprom has stated that its exports to countries outside the former Soviet Union have gone down by 27.6% in the January to May period, after losing several European clients. Moscow is demanding that they pay for the gas in rubles. Gas deliveries to Poland, Bulgaria, Finland and the Netherlands were halted after they refused to do so, Denmark is also about to have its Russian gas supply cut off.

Serhiy Haidai, head of the Luhansk military administration stated Severodonetsk should not be written off as having been captured by the Russian forces. The Ukrainian forces have launched counterattacks and the street fighting continues, Haidai said.

Oleksiy Arestovych, advisor to the President of Ukraine, announced that the Ukrainian artillery had hit a group of Russian inspectors in Lyman, among them high-ranking officials from Moscow. Donetsk separatist leader Denis Pushilin is allegedly among the wounded, but the information is yet to be confirmed, Arestovych said for Kanal 24 TV.

The Ukrainian operational command has announced that on 1 June the Ukrainian forces sunk two high-speed Russian landing craft in the Dnieper–Bug estuary in the Black Sea