The Justice Ministry will not accept the birth notification documents for a Japanese couple's twin boys born to an American surrogate mother in the United States last fall, officials said Friday.

The couple, who tried to register the births with the Japanese Consulate General in San Francisco soon after the babies were born in October 2002, were informed of the ministry's decision via the Foreign Ministry early Friday, a Justice Ministry official said.

The boys, listed as U.S. citizens, were born in California last fall and have been living with the Japanese couple in the Kansai region since April.