President Donald J. Trump’s envoys, Steve Witkoff and Jared Kushner, arrived in Moscow on Thursday for talks with President Vladimir Putin, Russian media reported, a day after American, Russian and Ukrainian delegations met in Abu Dhabi.

Russian presidential envoy Kirill Dmitriev met the two American representatives at Vnukovo Airport, the Interfax news agency reported. Russia’s state-run TASS news agency said a convoy carrying Dmitriev, Witkoff and Kushner left the airport after they landed.

Kushner said Wednesday that he and Witkoff would travel to Moscow after the U.S.-mediated talks, then fly to Dublin to meet Ukrainian President Volodymyr Zelenskiy. “One of the positives is we agreed that we’re going to have the biggest humanitarian release of prisoners, and we’re going to finalize the numbers tomorrow,” Kushner said.

The head of the Russian delegation at the Abu Dhabi talks said Russia and Ukraine had agreed “in principle” on a new large-scale prisoner exchange, with details to be announced soon. Secretary of State Marco Rubio had described that session as very productive.