Fighting in the eastern Ukrainian stronghold of Severodonetsk could become fiercer, as the local regional governor has warned that Russian forces are trying to capture it by Friday.
Luhansk Governor Serhiy Haidai said on social media that the Russians have been pouring in a vast amount of forces to take the city by June 10.
Russia's defense chief Sergei Shoigu said on Tuesday that residential areas in Severodonetsk have been fully liberated.
Ukraine's military said on Wednesday that fighting in the city is ongoing as Ukrainian forces have held back a fierce attack there.
Ukrainian President Volodymyr Zelenskyy told foreign media on Tuesday that the advancement of Ukrainian forces in the east has been slowing recently, and that some places are under the threat of Russia's offensive.
He called for continued military aid by Western countries, saying that to win on the battlefield, his country needs powerful weapons that are not inferior to those of enemy forces.
Zelenskyy also called on the international community to step up economic sanctions, which he called modern economic weapons that do not involve bloodshed.