A journalist working for a United Nations-sponsored radio station in the Democratic Republic of Congo was shot dead Wednesday night.

Serges Maheche, 31, worked for Radio Okapi in the eastern town of Bukavu.

Witnesses say Maheche was walking to his U.N.-marked car, when at least two gunmen approached him and opened fire. No other injuries were reported.

Radio Okapi's editor-in-chief, Yves Renard, said Maheche's killing has deeply affected his colleagues at the station.

It is not clear whether Maheche was killed because he is a journalist. Local media say he had received death threats. He is the third journalist to be killed in the DRC in the last three years.

Some information for this report was provided by AP and Reuters.