U.N. spokeswoman Sylvie van den Wildenberg says cars are being damaged and windows are being shattered.
People in eastern Congo are angry that the United Nations' 17,000-strong peacekeeping force has been unable to protect them from a rebel attack just 25 miles north of the city. The rebel attack has forced tens of thousands of civilians to abandon their homes.
Reporters saw hundreds of soldiers leaving the front Monday in tanks, jeeps, trucks and on foot in what appears a retreat of government forces under attack by fighters of renegade Gen. Laurent Nkunda.