Residents say at least 16 people have been seriously wounded in violence ahead of Congo's national elections being held later this month.
In the country's southeast, Lubumbashi resident Oscar Shabani said Tuesday there have been clashes in recent days between supporters of two different opposition candidates.
Meanwhile, authorities shut down a private television station in the capital after opposition candidate Etienne Tshisekedi called on his followers to break their fellow supporters out of jail Sunday night.
Incumbent President Joseph Kabila is widely expected to win the Nov. 28 election because there is a multitude of candidates and only one round of voting. The poll will be only the second democratic election in half a century.