Long-anticipated elections in the Democratic Republic of Congo, already delayed by two years and a week, finally got underway on Sunday, but they were deeply flawed, with more than a million voters excluded from casting their ballots, most of them in opposition strongholds.

Across the country, many voters arrived at polling places only to find that their names were not on electoral rolls. Some voting centers opened seven hours late, partly because of a storm and also because electoral rolls had not arrived in time. Voting machines, in use for the first time, malfunctioned in a number of polling places.

The landmark vote is the country’s first transfer of power through the ballot box since it gained independence in 1960. It was supposed to mark the end of President Joseph Kabila’s nearly 18-year rule, although he recently insinuated that he was open to returning to power later.