Iowa State says defensive line coach Curtis Bray died Wednesday morning. He was 43.
Cyclones spokesman Mike Green confirmed Bray's death to The Associated Press, but said no additional details were immediately available.
Bray, a former star linebacker at Pittsburgh, spent the past five seasons working under coach Paul Rhoads with the Cyclones.
Bray grew up in Monroeville, Pa. and graduated from Pitt in 1992. He coached at Duquesne, Western Kentucky and Villanova and later worked with Rhoads at Pittsburgh.
Bray also coached at Temple before joining Rhoads's first staff at Iowa State.