FACTBOX - Violence targeting aid workers in Somalia

(Reuters) - The killing and kidnapping of aid workers in Somalia threatens to wreck all attempts to resolve a humanitarian disaster that could soon rival the Somalia famine in the early 1990s, the United Nations warned on Tuesday.

Here are details of recent attacks targeting aid workers:

* Gunmen kill Mohamed Kheire, local deputy head for a German charity, Bread for the World, on July 11 at Elasha, south of Mogadishu. Separately, gunmen in the capital also kill another local man working for a ASAL, a partner group of the U.N. World Food Programme (WFP).

* Gunmen kill Osman Ali Ahmed, local country director for the U.N. Development Programme (UNDP) as he leaves a Mogadishu mosque on July 6.

* Gunmen kidnap five local employees from Water For Life, an Italian charity, after stopping their cars west of the capital.

* A Kenyan university lecturer was kidnapped in May in Mogadishu by three abductors who demanded $100,000 ransom.

* A Briton and a Kenyan working on a U.N.-funded project were seized by gunmen in April and taken to Jilib town, 280 km (175 miles) south of Mogadishu. They are still being held.

* Ten men with pistols briefly seized two Libyan diplomats in January while they shopped in a busy market in Mogadishu.

* A Spanish doctor and an Argentine nurse were taken by gunmen in the northern port city of Bosasso at the end of December 2007. The two -- who worked for the Spanish branch of Medecins sans Frontieres -- were later released.