SEOUL, South Korea — A fleet of Chinese fishing vessels used North Korean crews between 2019 and 2024 in violation of U.N. bans, and many people were apparently subjected to abuses including being trapped at sea for years, a report said Monday. The Environmental Justice Foundation, a London-based group specializing in environmental and human rights issues, said it identified the presence of North Koreans on 12 Chinese tuna long-liners operating in the southwest Indian Ocean. The report was