Prosecutors are investigating whether a private airfield owned by a former South Korean air force official is connected with his indictment on charges of leaking military secrets to a U.S. defense conglomerate.

According to Seoul Central District Prosecutors Office on Monday, Kim Sang-tae owns a 40,000-square-meter private airfield in Yeoju-gun, Gyeonggi Province, worth about 7 billion won ($6.5 million).

<YONHAP PHOTO-0888> 기밀누설 김상태 前공군총장 운영중인 비행학교 (여주=연합뉴스) 신영근 기자 = 군사기밀을 누설한 혐의로 기소된 김상태(81) 전 공군참모총장이 운영하고 있는 것으로 알려진 경기도 여주군 가남면의 비행학교. 검찰은 김 전 총장이 군사기밀을 넘기는 대가로 장기간 거액의 수수료를 받아온 만큼 해당 비행학교를 관리, 운영하는데 이 돈이 사용됐을 가능성도 있다고 보고 자금 흐름을 살펴볼 것으로 알려졌다. 2011.8.8. << 지방기사 참고 >> drops@yna.co.kr http://blog.yonhapnews.co.kr/geenang/2011-08-08 11:14:03/ <저작권자 ⓒ 1980-2011 ㈜연합뉴스. 무단 전재 재배포 금지.>\r\nA 7 billion won airfield privately owned by former South Korean Air Force Chief of Staff Kim Sang-tae in Yeoju-gun, Gyeonggi Province Yonhap News
기밀누설 김상태 前공군총장 운영중인 비행학교 (여주=연합뉴스) 신영근 기자 = 군사기밀을 누설한 혐의로 기소된 김상태(81) 전 공군참모총장이 운영하고 있는 것으로 알려진 경기도 여주군 가남면의 비행학교. 검찰은 김 전 총장이 군사기밀을 넘기는 대가로 장기간 거액의 수수료를 받아온 만큼 해당 비행학교를 관리, 운영하는데 이 돈이 사용됐을 가능성도 있다고 보고 자금 흐름을 살펴볼 것으로 알려졌다. 2011.8.8. << 지방기사 참고 >> drops@yna.co.kr http://blog.yonhapnews.co.kr/geenang/2011-08-08 11:14:03/ <저작권자 ⓒ 1980-2011 ㈜연합뉴스. 무단 전재 재배포 금지.>\r\nA 7 billion won airfield privately owned by former South Korean Air Force Chief of Staff Kim Sang-tae in Yeoju-gun, Gyeonggi Province Yonhap News

A 7 billion won airfield privately owned by former South Korean Air Force Chief of Staff Kim Sang-tae in Yeoju-gun, Gyeonggi Province (Yonhap News)

Kim was indicted without detention with two other former branch officers after having received 2.5 billion won in commissions from Lockheed Martin on several occasions in 2009 and 2010, according to state prosecutors.

Prosecutors believe that the private airfield, which holds eight planes and runs a flight school, was operated and maintained using the money that Kim illicitly received through the years.

Kim was the Air Force chief of staff from 1982-84 and ran a local weapons brokerage firm from 1995 on.

Investigators suspect that on 12 separate occasions from 2004 to 2010, Kim offered confidential information regarding the Air Force’s weapons purchase plans and developments to U.S. defense firm, Lockheed Martin.

Lockheed Martin claims that the firm did nothing wrong and is cooperating fully with the investigation, prosecutors said.

By Robert Lee (robert@heraldm.com)