Sumar, Iran
Sumar is a city and capital of Sumar District, in Qasr-e Shirin County, Kermanshah Province, Iran. At the 2006 census, its population was 20, in 15 families, making it Iran's least populous settlement with city status. Virtually the entire population of Sumar was killed by an Iraqi chemical attack, and the city was destroyed during the Iran-Iraq War. It has not been rebuilt.