The Sudanese military authorities have set up a committee to investigate recent violence in the southern Blue Nile state, where nearly 200 people were killed and thousands displaced.
The killings followed fighting between the Hausa and other local tribes, which escalated last week.
Military spokesperson Col Nabil Abdullah says the committee formed will investigate and evaluate the security situation.
The authorities have also set up a new military command for the Blue Nile state in an effort to contain the ethnic conflict.