A man in his 50s has become the first Indigenous Australian to die of COVID-19 in Dubbo, NSW.

This came after 51 new cases of COVID-19 were reported in the western NSW region on Monday, including 31 cases in Dubbo. 

As of Tuesday there were 561 active cases of Covid-19 in the western local health district, 65% of whom were Aboriginal or Torres Strait Islander.

Regional NSW remains in lockdown until at least September 10.