The Finance Ministry admitted Wednesday that it disposed of documents to cover up negotiations with Moritomo Gakuen, a school operator linked to the wife of Prime Minister Shinzo Abe that got a steep discount on the purchase of state property, releasing over 900 pages of records it had attempted to discard that detailed exchanges between the company and the ministry.

The latest evidence of a government effort to conceal the shady deal comes less than three months after the ministry admitted it had doctored separate documents to make them match sworn testimony in the Diet by a senior bureaucrat, who stated the ministry had held no talks with the nationalist school operator before the 2016 land deal.

The documents disposed of were part of records detailing negotiations between ministry officials and Moritomo Gakuen, which was offered a state-owned plot of land at less than a seventh of the appraisal price.