The Defense Agency announced disciplinary measures Friday against 52 senior agency officials over the spy scandal involving Shigehiro Hagisaki, a Maritime Self-Defense Force officer arrested last month for allegedly leaking secret military documents to a Russian Embassy official.

Lt. Cmdr. Hagisaki, 38, a researcher at the National Institute of Defense Studies, will be given a dishonorable discharge, while Ken Sato, the agency's administrative vice minister, and MSDF Chief of Staff Adm. Kosei Fujita will have their salaries cut by 10 percent for one month on grounds of insufficient supervision of a subordinate.

Defense Agency chief Kazuo Torashima is also expected to voluntarily pay back 20 percent of one-month's salary to the state coffers.