Four men have been arrested in connection with a 2004 robbery at a transport company in which a record 542.5 million yen was stolen, police said Tuesday.
The four allegedly broke into the company's office in what is now Shimotsuke, Tochigi Prefecture, on the evening of Oct. 17, 2004, tied up two security guards and made off with the cash in some 20 bags that were in a safe.
Most of the bags were found in a nearby grassy area, but only 120 million yen of the loot was still inside.
Police identified one of the suspects as Hitoshi Ishimaru, a 28-year-old unemployed man from Sumida Ward, Tokyo.
The crime took place in what was then the town of Minamikawachi, now part of the city of Shimotsuke.