Prominent Nigerien opposition leader Hama Amadou is facing multiple charges including being involved in an organisation seeking to overthrow a democratic regime.
Mr Amadou is being held by the authorities.
Nigerien authorities have also brought charges of “regionalist propaganda” and “speech inclined to set people against one another” against the opposition leader.
At least two people died last week during protests following the presidential election in which ruling party candidate Mohamed Bazoum was declared winner with 55.75%.
Opposition candidate Mahamane Ousmane contested the results, alleging fraud.
Mr Amadou – who had once been considered the main opposition contender to run against Mr Bazoum but was banned from running – supported Mr Ousmane in the race.
Last week, Mr Ousmane’s supporters clashed with riot police in street confrontation following the announcement.
The protesters set houses on fire, including that of Radio France Internationale (RFI) correspondent Moussa Kaka.
Follow us on:
President Tinubu has ordered an investigation into the arrest, prosecution of minors involved in #EndBadGovernance…
Musk's $1M giveaway is under legal scrutiny in a Pennsylvania court case as it targets…
Kemi Badenoch has appointed former rivals Jenrick, Patel, and Stride to senior roles in her…
Boeing workers voted Monday on a new contract to end a seven-week strike
EFCC has arrested ex-Delta governor Ifeanyi Okowa for alleged misuse of oil derivation funds, diverting…
Barcelona faces severe flooding as search and rescue efforts continue.