South Korean police raided the head office of Korea Aerospace Industries (KAI) on Friday in connection with two Indonesian nationals accused of leaking technology related to a fighter jet project, a police official said. The two engineers are accused of breaching South Korea's Defense Acquisition Program Act and leaking technology related to the KF-21, South Korea's homegrown fighter jet that is partially backed by Indonesia. The raid started on Thursday and was continuing for a second day, an official at the security investigation bureau of Gyeongnam Provincial Police told Reuters.