Ukrainian's Armed Forces Command said on Monday that they see signs that Russia is beginning its new offensive in eastern Ukraine, reported Reuters. Russia's main military target is focused on taking full control of the Donetsk and Luhansk regions, Armed Forces Command added. 

The remarks come after a spokesperson for Ukraine's Defense Ministry said that Russian aircraft bombing runs in Ukraine have increased by 50%. 

The recent escalation of the fighting in Ukraine comes after Ukrainian President Volodymyr Zelenskyy said over the weekend that talks with Russia are at a "dead-end", given that Ukraine will not trade away its territory or people. 

Moreover, if Russian forces follow through on threats to destroy the remaining Ukrainian troops in Mariupol, this would "put an end" to peace talks, Zelenskyy warned.