A rally being held by the opposition outside the building of the Central Election Commission (CEC) will continue on Tuesday, Svoboda Party leader Oleh Tiahnybok has said.

"We will now ask people to stay here at least until tomorrow," he told reporters after a meeting with CEC Chairman Volodymyr Shapoval on Monday.

Tiahnybok said that decision on the possible extension of the rally would be taken on Tuesday, "based on the situation."