A court in Burkina Faso on Saturday rejected the chosen presidential candidate of the former ruling party, prompting threats of a boycott of the vote in October.

The presidential and legislative elections scheduled for Oct. 11 are intended to end one year of transitional rule imposed after longtime President Blaise Compaore was ousted in a popular uprising triggered by his attempt to alter rules that would have prevented him from seeking a third term.

The candidate list published Saturday included 16 of the 22 proposed candidates. The list is still provisional and appeals can be filed until Sept. 6. Most of the rejected candidates were disqualified for failing to pay the necessary fees.

But Eddie Comboigo, the chosen candidate of Compaore's Congress for Democracy and Progress, was barred under a new electoral code passed earlier this year that disqualifies candidates who supported Compaore's bid to stay in office. Earlier this week, the court rejected more than 40 candidates for the legislative vote including former ministers and lawmakers close to Compaore.

The United States has expressed concern about the code, which was denounced by a regional court. The country's interim leader, Michel Kafando, initially said the country would abide by the regional court's ruling, but transitional authorities have more recently called for the High Court's decisions to be respected.

Compaore's party will boycott the elections "and resort to civil disobedience" if its candidates are blocked from running, said Jonathan Yameogo, a communications official with the party.