At least 30,000 Libyans have been left homeless in the eastern city of Derna in devastating flash floods unleashed by Storm Daniel, the International Organization for Migration said Wednesday. The UN agency added that thousands more had been left homeless in nearby towns. Another 10,000 people were still missing, said Tamer Ramadan of the International Federation of Red Cross and Red Crescent Societies. Rescue teams from Turkey have arrived in eastern Libya, according to authorities. The United Nations and several countries offered to send aid, among them Algeria, Egypt, France, Italy, Qatar and Tunisia.