LOS ANGELES, Calif. -

Actor Michael Clarke Duncan -- who was nominated for an Oscar for his role in "The Green Mile" -- has died at the age of 54. That word comes from his fiancée, former reality TV star Omarosa Manigault.

In a statement, she says Duncan died this morning in a Los Angeles hospital after nearly two months of treatment following a July heart attack. The 6-foot-5, 300 pound Duncan appeared in dozens of films, including such box office hits as "Armageddon" and "Planet of the Apes."