Aid Workers Kidnapped by Somali Militants Released Two Spanish aid workers kidnapped by Somali militants from a Kenyan refugee camp in October 2011 have been released, ending a 21-month hostage ordeal, the aid group Doctors Without Borders said Thursday. Doctors Without Borders said the two women, Montserrat Serra and Blanca Thiebaut, were both safe and healthy. The group thanked those involved with securing the women's release but did not specify who that was. Somali militants entered the world's largest refugee camp - Dadaab, in eastern Kenya - in October 2011 and took the two women. The kidnapping forced aid agencies to scale back relief operations in Dadaab, and it was one of the reasons Kenya gave for sending troops into Somalia days later to fight Shabab insurgents. The Kenyan troops, now a part of the African Union military mission, remain there today.