In November 2017 Gui had sought medical care in Ningbo after having developed some neurological symptoms while in detention. He had been told to seek a second opinion by foreign specialists, so the Swedish embassy in Beijing had arranged for Gui to travel there by train to be examined by a Swedish doctor. Gui was travelling accompanied by two senior Swedish diplomats when the journey was intercepted and a group of ten plainclothes police seized him and carried him off the train. Chinese officials claimed that Gui was now under investigation for illegal business operations, trafficking in state secrets, and ‘illegally spending time with foreign diplomats’. There has been no trial date and no detention notice.