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Opposition leaders Franck Diongo (L) and Diomi Ndoganla (C) listen to a statement of the National Episcopal Conference of Congo (CENCO) about November elections, at Notre Dame Cathedral in Gombe, a distric of Kinshasa in January 12, 2012. The Democratic Republic of Congo's influential Catholic church today urged the country's polling body to address "serious errors" in the counting of November elections or resign. The electoral panel "should have the courage to put itself on the line and fix the serious errors.. that have dented the people's trust in the institution, or else resign," the National Episcopal Conference of Congo (CENCO) said. AFP PHOTO / JUNIOR D.KANNAH (Photo credit should read JUNIOR D.KANNAH/AFP via Getty Images)

TOPSHOT - Supporters of Franck Diongo, the leader of the Lumumbist Progressive Movement (MLP) political party, sing and dance ahead of his release after two years in prison on March 16, 2019 in Kinshasa. - Franck Diongo was arrested during the political unrest in 2016 which called for the stepping down of former President of the Democratic Republic of the Congo Joseph Kabila. (Photo by JOHN WESSELS / AFP) (Photo credit should read JOHN WESSELS/AFP via Getty Images)

TOPSHOT - A supporter of Franck Diongo, the leader of the Lumumbist Progressive Movement (MLP) political party, sings and dances ahead of his release after two years in prison on March 16, 2019 in Kinshasa. - Franck Diongo was arrested during the political unrest in 2016 which called for the stepping down of former President of the Democratic Republic of the Congo Joseph Kabila. (Photo by JOHN WESSELS / AFP) (Photo credit should read JOHN WESSELS/AFP via Getty Images)

Supporters of Franck Diongo, the leader of the Lumumbist Progressive Movement (MLP) political party, sing and dance ahead of his release after two years in prison on March 16, 2019 in Kinshasa. - Franck Diongo was arrested during the political unrest in 2016 which called for the stepping down of former President of the Democratic Republic of the Congo Joseph Kabila. (Photo by JOHN WESSELS / AFP) (Photo credit should read JOHN WESSELS/AFP via Getty Images)

A Supporter holds up a pen drawing of Franck Diongo, the leader of the Lumumbist Progressive Movement (MLP) political party, ahead of his release after two years in prison on March 16, 2019 in Kinshasa. - Franck Diongo was arrested during the political unrest in 2016 which called for the stepping down of former President of the Democratic Republic of the Congo Joseph Kabila. (Photo by JOHN WESSELS / AFP) (Photo credit should read JOHN WESSELS/AFP via Getty Images)

Supporters of Franck Diongo, the leader of the Lumumbist Progressive Movement (MLP) political party, sing and dance ahead of his release after two years in prison on March 16, 2019 in Kinshasa. - Franck Diongo was arrested during the political unrest in 2016 which called for the stepping down of former President of the Democratic Republic of the Congo Joseph Kabila. (Photo by JOHN WESSELS / AFP) (Photo credit should read JOHN WESSELS/AFP via Getty Images)