Police from three Tokyo-area prefectures on Wednesday arrested seven suspected members of a ring of thieves who allegedly took at least 300 million yen from private bank accounts using stolen cash card information, investigators said.

Tokyo, Chiba and Kanagawa police, in their first crackdown on cash card information theft, searched a golf course north of Tokyo earlier in the day for evidence and questioned other suspects, including Japanese and Chinese nationals, they said.

Those questioned include the 51-year-old manager of Lakewood Golf Club, Tomioka Course, in Tomioka, Gunma Prefecture. Police suspect that someone in the prestigious links may have had a hand in the thefts, they said.