KYIV, Ukraine (AP) — The next round of peace talks between Russian and Ukrainian delegations will take place on Wednesday and Thursday, Ukrainian President Volodymyr Zelenskyy announced on Sunday.

Envoys from Russia, Ukraine and the U.S. had been expected to meet that day in Abu Dhabi, to continue negotiations aimed at ending Moscow’s all-out invasion of its neighbor.

“We have just had a report from our negotiating team. The dates for the next trilateral meetings have been set: Feb. 4 and 5 in Abu Dhabi. Ukraine is ready for substantive talks, and we are interested in an outcome that will bring us closer to a real and dignified end to the war,” Zelenskyy said in a Telegram post.

There was no immediate comment from U.S. or Russian officials.

On Saturday afternoon, top Russian envoy Kirill Dmitriev said he had held a “constructive meeting with the U.S. peacemaking delegation” in Florida.

Officials have so far revealed few details of the talks in Abu Dhabi, which are part of a yearlong effort by the Trump administration to steer the sides toward a peace deal and end almost four years of all-out war.

While Ukrainian and Russian officials have agreed in principle with Washington’s calls for a compromise, Moscow and Kyiv differ deeply over what an agreement should look like.

A central issue is whether Russia should keep or withdraw from areas of Ukraine its forces have occupied, especially Ukraine’s eastern industrial heartland called the Donbas, and whether it should get land there that it hasn’t yet captured.