Two men have died following a single-vehicle crash in New South Wales' south.

Emergency services were called to Bigga Road in Bigga, approximately 80km south-east of Cowra, after reports of a crash about 11am yesterday.

Police officers found that a Toyota Station Wagon had crashed into a tree before catching alight.

The two men in the car - aged 61 and 57 - died at the scene.

A crime scene has been established as police investigate the cause of the crash.

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