About 100 people were killed Monday when supporters of Joseph Mukungubila launched attacks in Kinshasa, the Wall Street Journal reported. Their targets included the airport, the military headquarters and and the national TV station.
Most of those killed were young men, supporters of Mukungubila. Many were wearing T-shirts bearing his picture.
Lambert Mende, the minister of information, said security forces were searching for Mukungubila, who ran for president in 2006 and has recently been a sharp critic of President Joseph Kabila. Mukungubila operates churches in Kinshasa and in Katanga province, the center of copper and cobalt mining.
"Joseph Mukungubila is on the run, he is wanted in connection with these senseless attacks," Mende said.
There was also violence in Lubumbashi, the Katanga capital, Mende said.
The attacks brought Kinshasa to a halt Monday. By Tuesday, the city appeared calm with traffic at the airport resuming, the United Nations Radio Okapi said.