The incident is said to have occurred on July 17, a Russian fishing vessel seized by the DPRK.

  • 17 sailors aboard
  • 15 Russians and 2 South Koreans
  • heading from South Korea to the Sea of ​​Japan

They are said to have been 'escorted' to North Korea, where they still remain

See if I can dig up any more on this.

July 17 Russian fishing vessel seized by North Korea