Citizens in Belarus went to polling stations on Sunday to elect a president. At least one-third of the electorate had voted by noon.
According to the head of the CIS observer mission, Sergei Lebedev, no violations have been registered so far.
Exit poll data will be available at 8:00 p.m. local time (9:00 p.m. Moscow time), and the first preliminary results will be announced late into Sunday night.
The incumbent head of state Aleksandr Lukashenko, who has held office for 16 years, is among the 10 candidates for the presidency.
Meanwhile, the opposition has claimed the results will be falsified and urged people to come to a central square in Minsk after the polling stations close.