Preparations are underway for a face-to-face meeting between U.S. President Donald Trump and Russia's Vladimir Putin, Russia's deputy foreign minister said Saturday, marking a dramatic shift away from Western isolation of Moscow over its war in Ukraine.

Speaking to Russian state media, Sergei Ryabkov said a possible Putin-Trump summit could involve broad talks on global issues, not just the war in Ukraine.

“The question is about starting to move toward normalizing relations between our countries, finding ways to resolve the most acute and potentially very, very dangerous situations, of which there are many, Ukraine among them,” he said.

But he said that efforts to organize such a meeting are at an early stage, and that making it happen will require “the most intensive preparatory work."

Ryabkov said that U.S. and Russian envoys could meet “within the next two weeks” to pave the way for further talks between senior officials.

Russian and U.S. representatives on Tuesday agreed to start working toward ending the war in Ukraine and improving their diplomatic and economic ties, according to the two countries’ top diplomats, at a high-level meeting in Saudi Arabia that marked an extraordinary about-face in U.S. foreign policy under Trump.

After the meeting, U.S. Secretary of State Marco Rubio told the AP that the two sides agreed broadly to pursue three goals: to restore staffing at their respective embassies in Washington and Moscow; to create a high-level team to support Ukraine peace talks; and to explore closer relations and economic cooperation.

He stressed, however, that the talks — which were attended by his Russian counterpart, Sergey Lavrov, and other senior Russian and U.S. officials — marked the beginning of a conversation, and that more work needs to be done. Lavrov, for his part, hailed the meeting as “very useful.”

No Ukrainian officials were present at the meeting, which came as the beleaguered country is slowly but steadily losing ground against more-numerous Russian troops, three years after Moscow launched an all-out invasion of its smaller neighbor.

Ukrainian President Volodymyr Zelenskyy said his country would not accept any outcome from the talks since Kyiv didn’t take part, and he postponed his own trip to Saudi Arabia scheduled for last Wednesday. European allies also have expressed concerns they are being sidelined.