Video: Georgian President Mikhail Saakashvili joined worshippers to celebrate Easter
In neighbouring Georgia, President Mikhail Saakashvili attended an Easter service in the Tbilisi Central Trinity cathedral with his wife and two sons.
Mr Saakashvili has been facing opposition calls for him to step down for the past week.
Protesters have taken a short break for the Easter festivities, but opposition leaders have vowed to launch the "final stage of the battle" after the holidays.
"It is a great celebration for the entire Orthodox world," President Saakashvili said in the cathedral. "Georgia, as one of the most ancient Christian nations, is celebrating it and we are sharing it with all the Orthodox Christians worldwide."