Overview

• The collision involved a freight train carrying copper and a test train with 10 workers on board.
• Two crew members from the freight train were killed; the injured include four Chinese nationals.
• Authorities have detained the test train driver and a railway operator on charges of reckless manslaughter.
• Security footage showed both trains traveling at high speeds before the crash.
• Chile has significantly improved railway safety since a deadly 2001 crash, making such incidents rare.