Some shinkansen bullet train services were delayed Saturday morning due to a malfunctioning maintenance vehicle, affecting around 4,900 passengers, railway operator JR East said.Services were temporarily suspended between Omiya and Takasaki stations near Tokyo, resuming shortly after 7 a.m., according to the company.Four trains on the Joetsu Shinkansen Line, which connects Tokyo and Niigata, were delayed up to 45 minutes, while five trains on the Hokuriku Shinkansen Line, linking the capital and Tsuruga in Fukui Prefecture, were late up to 33 minutes, it said.READ FULL ARTICLE