Muhammaed Yasir Ahmed Taher was a citizen of Yemen, who was held in extrajudicial detention in the United States's Guantanamo Bay detention camps, in Cuba. His Guantanamo Internment Serial Number was 679. American intelligence analysts estimate he was born in 1980, in Ibb, Yemen. He was the younger brother of Ali Abdullah Ahmed, one of the three Guantanamo detainees who died in custody on June 10, 2006. He was repatriated on December 19, 2009. NBC News reported, on March 3, 2017, that he was killed by a missile launched from a surveillance drone on March 2, 2017.