European Union (EU) foreign ministers on Friday urged Serbia not to stray from its EU membership path as the Balkans country readies to sign a trade agreement with the Eurasian Economic Union (EAEU), The Associated Press reported.

Serbia is expected to sign the pact with the EAEU—made up of Armenia, Russia, Belarus, Kazakhstan, and Kyrgyzstan—on October 25.

But to join the EU, candidate countries such as Serbia must align their policies with their European partners, notably on trade.

At talks with his EU counterparts Friday, Slovak Foreign Minister Miroslav Lajcak described Serbia’s actions as “confusing.”

“If you are serious about your European orientation then obviously you make political decisions that bring you closer to it,” Lajcak said. “This is not one of them.”