Putin sets out conditions for Ukraine ceasefire
The Russian president was responding to a plan for a 30-day ceasefire, which Ukraine agreed to earlier this week following talks with the US.
Ukrainian President Volodymyr Zelensky described Putin's response to the plan as "manipulative" and called for more sanctions on Russia.
Meanwhile, the US placed further sanctions on Russian oil, gas and banking sectors.
Russian officials said Putin was expected to hold talks on the ceasefire on Thursday evening with US President Donald Trump's special envoy Steve Witkoff, who had flown to Moscow earlier that day.
It is not clear whether that meeting actually took place. On Friday, Russia's state media quoted the air traffic monitor Flightradar as saying the plane believed to be carrying Witkoff had left Moscow.
Moscow and Washington have not commented on the issue.
Late on Thursday and overnight, both Russia and Ukraine reported new enemy drone attacks.
Ukraine said seven people - including children - were injured in the north-eastern city of Kharkiv.
Russia reported a large fire at an oil facility in the southern city of Tuapse.
Speaking at a news conference in Moscow on Thursday, Putin said of the ceasefire proposal: "The idea is right - and we support it - but there are questions that we need to discuss."
A ceasefire should lead to "an enduring peace and remove the root causes of this crisis", Putin said.
"We need to negotiate with our American colleagues and partners," he said. "Maybe I'll have a call with Donald Trump."
