Prosecutors in Osaka have decided not to indict Nobuhisa Sagawa, the former head of the National Tax Agency, and other government officials suspected of falsifying 14 government documents related to an alleged cronyism scandal involving Prime Minister Shinzo Abe and school operator Moritomo Gakuen, sources said Friday.

Sagawa, also the former head of the Finance Ministry's Financial Bureau, is suspected of ordering the deletion of dozens of sections from documents related to a shady land deal between the ultranationalist school operator and the Finance Ministry.

Osaka-based prosecutors have conducted a monthslong investigation into the allegations, as the Penal Code bans the falsification of government documents.