The military of the Democratic Republic of Congo (DRC) said on Sunday that its armed forces had prevented a violent takeover of power.
"An attempted coup d'etat has been stopped by the defense and security forces," said army spokesman General Sylvain Ekenge in a message broadcast on national television.
"The attempt involved foreigners and Congolese. These foreigners and Congolese have been put out of action, including their leader," he said, without specifying whether "out of action" meant killed or detained.
The United States Embassy issued a security alert on Sunday warning of "ongoing activity by DRC security elements" and reports of gunfire in the area.
Reports of shootout in capital
Earlier, armed men reportedly attacked the Kinshasa residence of Economy Minister Vital Kamerhe, a candidate for speaker of the National Assembly of Congo.
Two police officers and one of the attackers were said to have been killed in a shootout at the residence, with local media identifying the assailants as Congolese soldiers.
The incident came amid a crisis in President Felix Tshisekedi's ruling party, as Congolese leaders struggle to find the next speaker of parliament.
The vote was supposed to be held on Saturday but was postponed.
Tshisekedi was reelected as president in December in a vote claimed by the opposition to be untransparent.
The central African country has seen several disputed elections in the past.