A leading opposition candidate for president of Democratic Republic of Congo has been questioned in the city of Lubumbashi after the government accused him of hiring mercenaries, reports Reuters news agency.
Police fired tear gas at more than 1,000 supporters of Moise Katumbi who marched to the prosecutor general’s office, where he was being questioned, chanting “president!”.
Some entered the building and at least four were arrested, a witness told Reuters.
Mr Katumbi has denied accusations made by the justice minister last week that he hired mercenaries including US soldiers.
His supporters say the allegations are aimed at derailing his campaign to succeed President Joseph Kabila.
The government denies Katumbi is being targeted for political reasons.
Elections are expected later this year.
@BBC
