Warning: This video contains disturbing images.

Gunmen killed a Chinese national and a Congolese soldier in an ambush on Monday, in the Democratic Republic of Congo.

Fighting between tribal groups has increased over the past week, killing nearly 200 people in the northeastern Ituri province.

Hundreds of thousands of others have been displaced.

Al Jazeera's Alexi O'Brien reports.

Check our website: http://www.aljazeera.com/

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