Two CIA officers were reportedly killed in a traffic accident in northern Mexico, along with two Mexican officials. The accident occurred as they were returning from activities related to a major anti-drug enforcement effort. Mexican President Claudia Sheinbaum has ordered a review into whether the circumstances surrounding the joint cooperation complied with national security protocols. The incident comes amid pressure from Washington on Mexican authorities to intensify action against organized crime groups. The American personnel had been involved in separate training-related activity before later meeting with local investigators. An investigation into the cause of the crash is ongoing.