Factbox-Results so far in Nigeria's presidential election

A day after the elections, officials examine papers at a vote collation centre that had been stormed by unknown assailants earlier in the day in Alimosho, Lagos, Nigeria on February 26, 2023. REUTERS/James Oatway

LAGOS (Reuters) - Nigeria's electoral commission has started announcing state-by-state results from Saturday's presidential election.

All three major parties have complained of irregularities. There have been reports of violence and intimidation, although not on the scale of previous elections.