A rebel ambush sparks a firefight in the Democratic Republic of Congo.<br/> <br />While tracking down insurgents in the eastern part of the country, Congolese soldiers were hit by a rocket attack.<br/> <br />In the ambush, which they said was done by a Ugandan rebel group, the colonel leading the fight against the insurgency was killed.<br/> <br />One soldier said they were still trying to confirm his location.<br/> <br />(SOUNDBITE) (Swahili) UNNAMED CONGOLESE SOLDIER, SAYING:<br/> <br />"We do not know where our colonel is. Yes, we know he was ambushed, but after that we have no other information."<br/> <br />As smoke from the ambushed vehicle drifted into the sky, several soldiers wept over their loss.<br/> <br />The colonel's killing highlights the challenge facing the Congolese government and the thousands of U.N. peacekeepers in the country.