The Supreme Court on Thursday rejected an appeal by senior citizen investors suing the government for damages over its failure to prevent the now-defunct Toyota Trading Corp. from waging a nationwide gold sales scam in the 1980s.

The top court's First Petty Bench dismissed the final appeal by plaintiffs who were dissatisfied with a 1998 ruling by the Osaka High Court, which upheld the Osaka District Court's 1993 rejection of their claims against the government.

Presiding Justice Kazuko Yokoo said the lower court decisions not to hold the government liable for the Toyota Trading scam were appropriate.