This undated photograph made available by the Norwegian Refugee Council shows Norwegian Astrid Sehl, who was freed Monday July 2, 2012, along with three other hostages after their abduction Friday June 29, 2012 in northern Kenya. A pro-government Somali militia group said Monday that it rescued four aid workers kidnapped by gunmen from a refugee camp in Kenya last week. The four rescued workers from the Norwegian Refugee Council were flown to Nairobi, Kenya on Monday afternoon. (AP Photo/Norwegian Refugee Council via NTB Scanpix Norway)