Greek Archbishop Ieronymos informed the Holy Synod on Friday that he has refused an invitation from Patriarch Theophilos of Jerusalem to attend a meeting of Orthodox leaders.
According to a statement issued by the Holy Synod, Ieronymos refused the invite because the calling of such meetings of Orthodox leaders is the sole privilege of the ecumenical patriarch based in Istanbul.
The Ukrainian Church is independent of the religious administration of Moscow.
In a statement after the meeting in the Moscow Patriarchate, the Holy Synod of the Russian Orthodox Church stated that it could not, from now on, mention the name of Patriarch Theodore II in his prayers and participate in common prayers.
The Church of Greece said Wednesday it supported Ecumenical Patriarch Vartholomaios' right to grant independence to the Orthodox Church of Ukraine in 2018.
The Holy Synod, which met on Tuesday and Wednesday, said it also recognized Vartholomaios' "privilege" to "further address the issue of recognition."
Moldova's pro-Russian President Igor Dodon said on Tuesday that Russian Patriarch Kirill will visit Moldova from October 27 to 28 - a shorter visit than the four-day trip that was initially announced.
The Russian Patriarch has cancelled his planned sermon in Tiraspol in the breakaway region of Transnistria.