Spanish Prime Minister Mariano Rajoy has told the country's National Court he did not know anything about the ruling Popular Party's accounting practices when a corrupt scheme allegedly helped fund it.

Spanish opposition leaders yesterday urged Prime Minister Mariano Rajoy to resign over an alleged secret payments scandal.

Prosecutors questioned the former treasurer of Spain’s prime minister Mariano Rajoy’s party yesterday in an investigation launched following new allegations of corruption.

Spain’s Prime Minister has denied reports alleging that he and members of his governing Popular Party accepted or made under-the-table payments.

Pressure is growing on Spanish conservative prime minister Mariano Rajoy to explain how a former party treasurer amassed €22m in a Swiss bank account.