Europe to maintain humanitarian aid levels despite economic downturn - aid chief
EU to focus on reducing risks of disasters and conflicts, humanitarian aid chief says
Militia fighters attack south Sudan oil town -army
Violence raises fears for south ahead of secession
Rival troops build up in Sudan's Abyei -satellite
Fertile and oil-producing Abyei is one of the most likely places for conflict to erupt in Sudan ahead of July 9 secession of its south