Sudan: UN peacekeepers killed by Abyei landmine blast
Four Ethiopian UN peacekeeping troops have been killed by a landmine in Sudan's disputed region of Abyei.
A UN spokesman said seven other peacekeepers were injured by the blast in Mabok, south-east of Abyei town, which was occupied by northern forces.
UN Secretary General Ban Ki-moon was "saddened" by the deaths, he added.
The deaths come less than a week after the 4,200-strong Ethiopian peacekeeping force arrived in Abyei, claimed by the governments of Sudan and South Sudan.
UN spokesman Martin Nesirky said Mr Ban had expressed his condolences to the Ethiopian government, and the family and friends of those killed.
The injured have been airlifted to Kadugli, in the Sudanese state of South Kordofan.
The village where the landmine exploded had been occupied by troops loyal to the government in Khartoum, which has signed the Ottawa Treaty banning the use of anti-personnel mines.Buffer zone
Northern forces had occupied Abyei in May, raising fears of a renewal of Sudan's 21-year, north-south conflict.
After the offensive, more than 100,000 people fled the territory, mainly to South Sudan, which gained independence on 9 July.
But in June, both north and south agreed to withdraw their troops from Abyei, leaving a 20km (12-mile) buffer zone along the border.
A week later, the UN Security Council voted unanimously to send a 4,200-strong Ethiopian peacekeeping force to Abyei to monitor the withdrawal, as well as human rights.
The resolution established a new UN peacekeeping force, the United Nations Interim Security Force for Abyei (Unisfa).
It also ordered Unisfa to protect civilians and to "protect the Abyei area from incursions by unauthorised elements".
Sudan's permanent representative to the UN, Daffa-Alla Elhag Ali Osman, said northern forces would withdraw as soon as the Ethiopian troops had been deployed.
Both Sudan and the South are reliant on their oil revenues, which account for 98% of South Sudan's budget. But the two countries cannot agree how to divide the oil wealth of the former united state. Some 75% of the oil lies in the South but all the pipelines run north. It is feared that disputes over oil could lead the two neighbours to return to war.
Although they were united for many years, the two Sudans were always very different. The great divide is visible even from space, as this Nasa satellite image shows. The northern states are a blanket of desert, broken only by the fertile Nile corridor. South Sudan is covered by green swathes of grassland, swamps and tropical forest.
Sudan's arid north is mainly home to Arabic-speaking Muslims. But in South Sudan there is no dominant culture. The Dinkas and the Nuers are the largest of more than 200 ethnic groups, each with its own languages and traditional beliefs, alongside Christianity and Islam.
The health inequalities in Sudan are illustrated by infant mortality rates. In South Sudan, one in 10 children die before their first birthday. Whereas in the more developed northern states, such as Gezira and White Nile, half of those children would be expected to survive.
The gulf in water resources between north and south is stark. In Khartoum, River Nile, and Gezira states, two-thirds of people have access to piped drinking water and pit latrines. In the south, boreholes and unprotected wells are the main drinking sources. More than 80% of southerners have no toilet facilities whatsoever.
Throughout the two Sudans, access to primary school education is strongly linked to household earnings. In the poorest parts of the south, less than 1% of children finish primary school. Whereas in the wealthier north, up to 50% of children complete primary level education.
Conflict and poverty are the main causes of food insecurity in both countries. The residents of war-affected Darfur and South Sudan are still greatly dependent on food aid. Far more than in northern states, which tend to be wealthier, more urbanised and less reliant on agriculture.