U.N. kills four Congo fighters in dissident attack

GOMA, Congo (Reuters) - U.N. peacekeepers killed four Congolese dissident fighters on Sunday, pushing them out of a town they had overrun in a four-day offensive that has forced more than 50,000 people from their homes, a U.N. official said. 

Fighters loyal to renegade ex-army commander Laurent Nkunda, who reject a peace process to end Democratic Republic of Congo's five-year war, began an offensive in the east of the country on Thursday and have briefly occupied a number of towns and villages in cat-and-mouse fighting with the army.