The Sangihe Islands (also spelled "Sangir", "Sanghir" or "Sangi") – – are a group of islands which constitute two regencies within the province of North Sulawesi, in northern Indonesia, the Sangihe Islands Regency (Kabupaten Kepulauan Sangihe) and the Sitaro Islands Regency (Kabupaten Siau Tagulandang Biaro). They are located northeast of Sulawesi between the Celebes Sea and the Molucca Sea, roughly halfway between Sulawesi and Mindanao, in the Philippines; the Sangihes form the eastern limit of the Celebes Sea. The islands combine to total 813 sq kilometers, with many of the islands being actively volcanic with fertile soil and mountains.