A NSW Fire and Rescue spokesperson has confirmed that three firefighters were injured in the Green Wattle Creek fire.
It is understood that they may be from the Southern Highlands.
The three people suffered minor injuries fighting yesterday's blaze and were transported to hospital via ambulance.
The fire warning in the Wollondilly region is at Watch and Act level after it was downgraded last night from an Emergency warning.
Residents in the Northern Villages are reminded to clear their properties, monitor the conditions and leave if necessary.
More to come.