More than 100 allegedly bogus $100 bills were found aboard a North Korean freighter that called at Sakaiminato port, Tottori Prefecture, in late March, according to sources.
The bills were among some 6,500 used $100 bills aboard the 181-ton Rimyongsu 7, a North Korean cargo vessel that arrived at the port on March 23 and left Tuesday evening, the sources said.
The Kobe Customs branch office in Sakaiminato and Tottori police are investigating the case as a suspected violation of customs law, they said.