LOS ANGELES, July 22 Kyodo - John Anjain, the community leader of Rongelap Island when the United States tested a hydrogen bomb at Bikini Atoll on March 1, 1954, died Tuesday in Hawaii, his family said Thursday. He was 81.

The cause of his death was not immediately known.

Anjain was exposed to the bomb's radiation together with other residents on Rongelap, one of the Marshall Islands. His son, then 1, died at age 19, and is recognized by the U.S. government as the sole victim of the bomb test.

The bomb test also affected the crew of the Japanese fishing boat Fukuryu Maru No. 5, known in English as the Lucky Dragon.

For years, Anjain appealed for help over damage caused by nuclear testing as well as the hardships of radiation victims. He visited Japan several times to attend rallies and deliver lectures as part of his antinuclear activities. ==Kyodo