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Iva Toguri D'Aquino is interviewed by American journalists in Yokohama, Japan, on Sept. 10, 1945. ((Associated Press))

The woman once convicted for being "Tokyo Rose" has died in Chicago at the age of 90, said her nephew, William Toguri.

Iva Toguri D'Aquino was accused ofhelping the Japanese propaganda effort during the Second World War by making anti-American radio broadcasts.

The broadcasts were intended to demoralize Allied soldiers fighting in the Pacific theatre.

She was convicted, but later pardoned by then U.S. president Gerald Ford, who restored her citizenship.

D'Aquino was born in Los Angeles of Japanese parents. She was visiting relatives in Japan when the war started.

With files from the Associated Press