The head of the National Tax Agency resigned Friday in connection with the sweetheart land deal given to an Osaka-based school operator in 2016 that has been linked to Prime Minister Shinzo Abe's wife. The de facto sacking of Nobuhisa Sagawa, approved by the Cabinet, was announced as opposition lawmakers resumed their offensive against Abe's government.

Speaking to reporters, Sagawa said he decided to resign for stalling Diet deliberations.

The shady deal with Moritomo Gakuen is drawing even heavier fire in light of a recent media report that accused the government of tampering with documents related to the sale.