The high-stakes call between President Donald Trump and Russian President Vladimir Putin expected on Tuesday comes as the White House insists it is closing in on a temporary ceasefire deal to pause the war between Russia and Ukraine.

Putin said he was "for" a ceasefire but raised concerns and set out his own conditions, such as certain security guarantees. Ukrainian President Volodymyr Zelenskyy, meanwhile, has accused the Russian leader of obstructing peace and "prolonging" the war.