Prosecutors on Monday asked the Tokyo District Court to sentence former Aum Shinrikyo fugitive Naoko Kikuchi to seven years in prison for her role in the 1995 parcel bomb attack on the Tokyo Metropolitan Government building, saying she deserved "the heaviest punishment possible."

Kikuchi, who acted as a courier for the explosives, was "indispensable" to the attack, they said.

Kikuchi, 42, is accused of complicity in the attack, which maimed a secretary of then-Tokyo Gov. Yukio Aoshima. The court's verdict and sentence are to be handed down simultaneously on June 30 after the lay judges have finished deliberating. Seven years is the maximum she faces if judged guilty.