Sources say Tokyo prosecutors questioned former prime minister Abe Shinzo on a voluntary basis on Monday over alleged political funding violations involving his support group.
One of Abe's secretaries, who heads his support group, is said to be under investigation on suspicion of violating the political funds control law.
Sources say Tokyo prosecutors questioned former prime minister Abe Shinzo on Monday over alleged political funding violations involving his support group.
Abe's office is said to have shouldered part of the costs of parties held for his supporters at Tokyo hotels.
Informed sources say Japanese prosecutors questioned a Diet lawmaker couple earlier this month on a voluntary basis over their alleged violations of the election law.
The sources say the questioning took place during a holiday period in early May.
Japanese prosecutors have questioned Upper House member Anri Kawai and her husband, Lower House member Katsuyuki Kawai, in connection with alleged election law violations.
Three aides to the two lawmakers of the governing Liberal Democratic Party were arrested earlier this month. They are alleged to have paid Anri Kawai's 14 campaign staff members more than the legal limit during her campaign for last year's Upper House election.