In this task, a passage will be given and the goal is to identify an event from the passage. An event is defined as a single word representing something that happened, is happening, or may happen. An event can be factual or hypothetical, positive or negative, certain or uncertain. While most events are based on verbs, an event can also be based on a noun (ex. storm, snow, rainfall) or a copula verb (is, was, been, etc.). The event must not be a pronoun or an adjective. For noun events with multiple words, use the last word in the phrase as event.

Passage: In another tragedy, 32 miners were killed and 28 injured in a colliery gas explosion at Changyuan Coal Mine in Fuyuan, a county in southwestern Yunnan Province. A third gas blast on Sunday hit Luweitan Colliery in Linfen city, North China's Shanxi Province, killing all 24 miners underground, the local government said on Monday.
tragedy