Prabowo Subianto, a former special forces general with ties to Indonesia’s current president and past authoritarian regimes, was confirmed as the winner of last month’s presidential election and two former governors vowed to challenge him in court. The election results were contested.

The Election Commission said on Wednesday after the official vote count was completed that Prabowo won 58.6% of the vote, former Jakarta governor Anies Baswedan (24.9%) and former Central Java governor Ganjar ·Ganjar Pranowo received 16.5%.

In Indonesia, election disputes can be registered with the Constitutional Court within three days of the official results being announced.

Two other candidates have alleged fraud and irregularities in the electoral process, including the appointment of President Joko Widodo’s son as a vice-presidential candidate. The popular outgoing president is serving a second term and cannot run again, but his son’s candidacy is seen as a sign of his tacit support for Prabowo.

Widodo’s son Gibran Rakabuming Raka is now 37 but became Prabowo’s running mate after the Constitutional Court made an exception to the 40-year minimum age requirement for candidates. The chief judge of the Constitutional Court, who is Widodo’s brother-in-law, was later dismissed by the ethics committee for failing to recuse himself and changing the requirements for election candidacy at the last minute.

Widodo’s Defense Minister Prabowo declared victory on election day, with unofficial tallies showing he won nearly 60% of the vote.