Updated

Family members say former Los Alamos National Laboratory Director Harold Agnew, who also worked on the Manhattan Project, has died. He was 92.

His family says Agnew died Sunday at his home in Solano Beach, Calif., while watching football. He had been suffering from chronic lymphocytic leukemia.

Agnew was the third director of Los Alamos National Laboratory and served from 1970 to 1979.

Under his leadership, Los Alamos developed an underground nuclear test containment program, acquired the first Cray supercomputer, and trained the first class of International Atomic Energy Agency inspectors.

During the Manhattan Project, a World War II program that provided enriched uranium for the atomic bomb, Agnew went to Los Alamos as a graduate student. He was a scientific observer on the 1945 bombing of Hiroshima, Japan.