Seven UN peacekeepers have been killed in Sudan's Darfur region in the deadliest ever attack on the force, the UN mission has said.
Britain will give at least £33 million in aid to Darfur as part of a £67 million package of support for Sudan, the Department for International Development has announced.
The money will ensure 1.7 million people a year in Darfur have access to safe water and sanitation and 1.5 million people are given emergency food supplies, the Government said.
International Development Minister Lynne Featherstone said: "Our aid will help the poorest to get the help they need to stand on their own and make them better able to cope when crises occur."
An international donors conference is being held in Doha today for the development of Sudan's western region, which has been riven by violent conflict for a decade.
Almost half of Darfur's population depend on emergency relief and nearly two million remain displaced since the conflict began in 2003.
The Minister for Africa Henry Bellingham has welcomed the release of aid worker Patrick Noonan. He said:
Patrick is now in the care of the World Food Programme in Sudan. Patrick's family and friends must be delighted, having endured the ordeal of his captivity with great strength and dignity.
A British aid worker abducted by armed men in Sudan's Darfur region has been released after 86 days in captivity.
Patrick Noonan was working for World Food Programme (WFP) as a logistician in Nyala in southern Darfur when he was captured on March 6th.
Although the civil war has calmed down in Darfur, tribal conflict and clashes between government troops and rebels are still common. WFP said 40 humanitarian workers have been abducted since 2009.