fatal accident; deadly accident
Refers to an accident resulting in death, commonly used in news reports and official contexts.
高速道路で死亡事故が発生した。
A fatal accident occurred on the expressway.
I felt sad hearing the news of the deadly accident.
A fatal accident occurred on the highway last night.
He caused a fatal accident by falling asleep at the wheel.
Even small carelessness can lead to a fatal accident.
This measure was introduced to prevent fatal accidents.