Mahmood Yakubu, INEC chairman, said the exercise was postponed in some affected polling units because voting process was disrupted.
The INEC chairman spoke on Saturday while briefing journalists at the collation centre, Abuja, on the ongoing general election.
The postponement affects both the presidential and national assembly elections in the polling units.
He said the exercise is now expected to hold on Sunday, February 26, 2023, as the situation is now under control.