U.S. President Donald Trump said on Tuesday he was not happy with Russian President Vladimir Putin and was considering additional sanctions on Moscow, underscoring his frustration over the growing death toll in Russia's war with Ukraine.

Trump said there is “no reason” for Russia’s continued attacks on Ukraine and complained that reaching a ceasefire in the three-year-old war Putin launched has been “tougher” than expected while crediting Kyiv’s forces for bravery as they’ve battled back Russia’s invasion.