Papers linking Chile's former military ruler, Augusto Pinochet, to alleged gold deposits worth $160m (£85.5m) in Hong Kong are fake, the HSBC bank says.
Gen Pinochet has seen his immunity lifted in several cases
The London-based bank said in a statement it would continue to co-operate with Chilean investigators.
Chilean officials said it was now up to the justice system to decide if the allegations were based on false papers.
Lawyers for the general - who ruled between 1973 and 1990 - have denied the accusations as insulting and baseless.
The Chilean courts have stripped Gen Pinochet, 90, of the legal immunity he enjoyed as a former president in several cases, but he has yet to face trial.
He is facing charges for tax evasion in connection with his family's undisclosed foreign bank accounts, and also faces possible charges in connection with human rights abuses committed during his time in power.