Plans are on hold for President Donald Trump to sit down with Russian leader Vladimir Putin to talk about resolving the war in Ukraine, according to a US official.
The meeting had been announced last week. It was supposed to take place in Budapest, although a date had not been set.
The decision was made following a call between US Secretary of State Marco Rubio and Russian Foreign Minister Sergey Lavrov.
The official requested anonymity because they weren't authorised to speak publicly.
The back-and-forth over Trump's plans are the latest bout of whiplash caused by his stutter-step efforts to resolve a conflict that has persisted for nearly four years.