A video filmed in Ginza, a shopping district in Tokyo, showed a group of masked individuals robbing a luxury watch shop on Monday.
They wielded a knife while inside and threatened to kill the shop’s sales clerks – smashing a display and fleeing the scene with stolen goods, Japanese broadcaster NHK reported.
Police say they believe the robbery was committed by three people who fled in a rented van that may have had replacement licence plates. Four arrests have been made in connection with the incident so far.
No one was hurt.