Updated

Sudan's military spokesman is ready to battle a Facebook imposter who has been making online comments about the country's armed forces, official media say.

Somebody has been using an account on social networking site Facebook to impersonate army spokesman Sawarmi Khaled Saad, the state SUNA news agency reported late Saturday.

The pretender "makes dialogue with friends on issues including matters related to the work of the armed forces", SUNA reported.

Saad will "take the necessary measures toward that criminal act", it added.

"Al-Sawarmi affirmed that he has no account in Facebook and has nothing to do with the comments made by the person (who) impersonates him over the Internet," SUNA said.

Sudan's military is battling rebels in the far-west Darfur region as well as in South Kordofan and Blue Nile states, while tensions persist along the border with South Sudan.

Analysts say authorities were humiliated in April and May when insurgents widened their offensive, and the military took one month to retake an area in South Kordofan from the rebels.