The families of abducted Japanese nationals said to have died in North Korea left Japan on Sunday to attend a meeting of a group established by the U.N. Human Rights Commission.

Sakie Yokota, 67, her son, Takuya Yokota, 34, and three other relatives of abductees believed dead will make a presentation Tuesday to the U.N. Working Group on Enforced or Involuntary Disappearances.

Yokota's daughter Megumi was abducted to North Korea from Niigata Prefecture in 1977 at the age of 13. Pyongyang has said that she and the others have died.