Russia and the United States have discussed the "next steps" of how to end the war in Ukraine, the Kremlin said on Sunday, hours after Kyiv's European allies urged Moscow to commit to an unconditional 30-day ceasefire.
The United States this week proposed the halt in fighting in the more than three-year war after talks in Saudi Arabia, which Kyiv agreed to.
Russian President Vladimir Putin has given no clear answer, instead listing a string of conditions and raising "serious questions" over the proposal.
Ukraine's Volodymyr Zelensky on Saturday accused the Kremlin of not wanting to end the war and warned that Moscow wanted to first "improve their situation on the battlefield" before agreeing to any ceasefire.
Moscow said Sunday that US Secretary of State Marco Rubio called his Russian counterpart Sergei Lavrov and that the pair had discussed "concrete aspects of the implementation of understandings" at a US-Russia summit in Saudi Arabia last month.
The February Riyadh gathering was the first high-level meeting between the United States and Russia since Moscow launched its invasion.
"Sergei Lavrov and Marco Rubio agreed to remain in contact," the Russian foreign ministry said, with no mention of the US-suggested ceasefire.
State Department spokeswoman Tammy Bruce said Saturday that the pair had "discussed the next steps" on Ukraine.
She also said Rubio and Lavrov "agreed to continue working towards restoring communication between the United States and Russia".
The call came hours after the UK hosted a virtual summit on Ukraine, with Prime Minister Keir Starmer accusing Putin of "dragging his feet" on the ceasefire.
"The 'yes, but' from Russia is not good enough," Starmer said, calling for a stop to the "barbaric attacks on Ukraine once and for all".
Kyiv the next day said Russia launched 90 Iranian-made Shahed drones onto nine Ukrainian regions.
Zelensky says Putin 'lying'
In his reaction to the ceasefire earlier this week, Putin said the initiative would benefit primarily Ukraine and not Russian forces, who he said are "advancing" in many areas.
He raised "serious questions" over the initiative.
Putin’s reaction to Ukraine ceasefire proposals deepen G7 rifts over US strategy
The proposal came as Russia, which occupies parts of southern and eastern Ukraine, has had momentum in some areas of the front.
It has ousted Ukrainian forces from parts of its Kursk region, where Kyiv hopes to hold onto Russian territory as a potential bargaining chip in any future negotiations.
Putin said he wanted to discuss Moscow's concerns with Trump in a phone call.
Zelensky said Saturday that by not agreeing to the ceasefire, Putin was also going against Trump, who has made overtures towards Russia, and accused Moscow of trying to find ways not to end the war.
He accused Putin of "lying about how a ceasefire is supposedly too complicated".
Ukraine said Sunday that one person was killed by a Russian drone strike on the city of Izyum in the Kharkiv region, which fell to Russia at the start of its Ukraine invasion before being retaken by Kyiv's forces.
(With newswires)
