European Union (EU) foreign policy chief Kaja Kallas said on Sunday that any agreement between the United States and Russia must include Ukraine and the EU, as the two countries prepare for talks on a possible ceasefire of conflicts in Ukraine.

"Any deal between the U.S. and Russia must have Ukraine and the EU included, for it is a matter of Ukraine's and the whole of Europe's security," she said.

Kallas revealed that she would convene an online meeting of EU foreign ministers on Monday to discuss "our next steps."

U.S. President Donald Trump and Russian President Vladimir Putin are due to meet on Aug. 15 in the U.S. state of Alaska to discuss a possible ceasefire in Ukraine, the first talks between the two leaders since 2021.