Four Japanese who are wanted for the hijacking of a Japan Airlines jet to Pyongyang in 1970, and who are still living in North Korea, will start microblogging on Twitter on Friday, according to a group of their Japanese supporters.

The four fugitives, including 70-year-old leader Takahiro Konishi, have been living in a so-called Japanese Village near Pyongyang.

They were among nine members of the former Japanese Communist League Red Army Faction who hijacked the jet in what came to be known as the Yodo-go Incident, after the plane's nickname.