Gunfire erupts in Sudan border city as residents return
Officials say 12 soldiers, six policemen and three citizens killed in Damazin fighting since last week
More fighting in Sudan border area, key town quiet
Last week, fighting broke out in Blue Nile state among Sudan's army and groups allied to the SPLM, the dominant force South Sudan
Renewed fighting, refugees in south of Sudan
Up to 3,000 people have fled fighting in the region, according to the United Nations refugee agency
Clashes erupt in flashpoint Sudan border state
Sudan's flashpoint state, Blue Nile, is home to many supporters of the south's dominant Sudan People's Liberation Movement (SPLM)