Warren Upton, the oldest living survivor of the 1941 Japanese attack on Pearl Harbor and the last remaining survivor of the USS Utah, has died. He was 105.

Upton died Wednesday at a hospital in Los Gatos, California, after suffering a bout of pneumonia, said Kathleen Farley, the California state chair of the Sons and Daughters of Pearl Harbor Survivors.

The Utah, a battleship, was moored at Pearl Harbor when Japanese planes began bombing the Hawaii naval base in the early hours of Dec. 7, 1941, in an attack that propelled the U.S. into World War II.

Upton told The Associated Press in 2020 that he had been getting ready to shave when he felt the first torpedo hit the Utah. He recalled that no one on board knew what made the ship shake. Then, the second torpedo hit and the ship began to list and capsize.