The Sudanese presidential adviser Mustafa Osman Ismail, said all options and avenues are open to Sudan to respond to 'aggression' carried out by South Sudan in Bahr Al Abyad.

The government in Juba has denied any connection to the attack.

Sudan's Permanent Representative to the United Nations, Dafalla Al-Haj Ali said Sudan complained to the president of the UN Security Council regarding the attack.

SPLM-N and Sudan Revolutionary Front spokesman Arnu Ngutulu Lodi said the Front has liberated Buram locality, including the Toroge area and El Ahamir.

The spokesman said Kadugli is now open as the next target for the Front.

The Sudanese army could not be reached for comment.