A Chinese woman was arrested in Japan on Tuesday for illegally exporting knitwear to North Korea.

Tang Xiao Qian, 38, was arrested in Yokohama on charges of illegal exporting from the Osaka-based trading company where she had previously worked, the Jiji news agency reported.

Under Japan’s strict sanctions regime virtually all exports to North Korea are banned. Osaka police said they will further investigate whether Tang has committed a similar crime on multiple occasions.

How Tang distributed the knitwear to China has not yet been released to the public.

One expert said Tang could have exported the goods via a