A daughter of one of nine Japanese men who hijacked a Japan Airlines jet and defected to North Korea in 1970 will move to Japan next month, sources said Sunday.

Rei Shibata, 27, one of two daughters born in North Korea to the hijacker, plans to arrive June 13, they said.

The other daughter, Aki Shibata, 25, has been in Japan since 2004, the sources said.

Their mother is Megumi Yao, 50, a Japanese.

The older daughter's move to Japan has been delayed due to health problems, the sources said. Only one of the children of the nine hijackers will still be in North Korea, they said.

Three of the nine hijackers have died. Shibata's father and another hijacker have returned to Japan. The four others are still in North Korea. Shibata's father was arrested in 1988 when he secretly returned to Japan. He finished serving time in 1994 and therefore his name is not publicized.

Yao, who went to North Korea in 1977, has confessed to involvement in the 1983 abduction of Keiko Arimoto to North Korea from Europe.