2 Japanese navy SH-60K Seahawk helicopters crashed during a nighttime drill, causing a fatal collision.

A collision during a nighttime drill has been identified as the cause of a deadly crash involving two Japanese navy SH-60K Seahawk helicopters, according to preliminary flight data analysis. The exercises were halted following the crash but will resume on Friday, with only solo flights allowed. The incident raised questions about the preparedness and protocols of the Japanese Self-Defense Forces, which is the country's military organization.