The Aum Shinrikyo cult issued a statement Sunday apologizing for the 1995 Tokyo subway gassing and promising to continue compensation payments.
The cult issued the statement a day before the fifth anniversary of the sarin gas attack, which left 12 people dead and injured more than 5,500.
Tatsuko Muraoka, 50, head of the cult in place of jailed guru Shoko Asahara, and spokesman Hiroshi Araki jointly issued the statement.
The cult said it will mail a letter Monday to lawyers representing the families of the victims of the March 20, 1995, attack and survivors.
Last December, Aum acknowledged its culpability in the gas attack for the first time, apologizing to victims and announcing its intention to compensate them.