South Korean media (Daily NK) is quoting reports in North Korean media

Saying

Dozens of Chinese military trucks are lined up around the Tumen River in Yanji city, Jilin province

Chinese truck moving at night

Also, reports of tanks moving to the NK and Chinese border

Something to keep aware of. Developments on North Korea can impact on the yen. Heightening tensions can be a yen positive, at least in the short term.