Translation of "Conflagration" in Japanese

A small forest fire quickly spread and became a huge conflagration.

小規模の森林火災はみるみる広がり大火災となった。

- The department of Legal Medicine Research is trying to ascertain the cause of today's conflagration.
- The Forensic Investigation Unit is trying to determine the cause of today's fire.

鑑識班は今日の火事の原因を特定しようとしている。