The fire is sending black plumes of smoke over the area and has caused severe damage to the club.
A lack of water supply and nearby gas cylinders are hampering efforts to calm a destructive fire that has engulfed a beloved sports club on NSW's Mid North Coast.
Firefighters were called to Sports Street in Nambucca Heads about 6am today after receiving several calls to an alarm activating.
One person inside the club at the time was able to escape and is being treated by paramedics for non-life-threatening injuries.
READ MORE: Man charged over alleged arson attempt on Sydney synagogue
About 40 firefighters arrived on the scene to find "intense fire activity".
Their efforts to control the fire are being complicated by several large gas cylinders nearby and the club's roof and structure collapsing.
They are also facing issues with water supply and have been forced to access more hydrants.
READ MORE: Four wounded in stabbing 'terror attack' in Israel
FRNSW Commissioner Jeremy Fewtrell was travelling through the area when the fire broke out and rushed to help.
"Our crews initially entered the building to attack the fire internally, but retreated as the building began to collapse, prioritising the safety of firefighters while continuing operations from the outside," he said.
"Firefighters worked tirelessly under extremely challenging conditions to protect life and property and contain the blaze".
READ MORE: Foreign Minister Penny Wong meets Donald Trump's top diplomat
The fire sent black plumes of smoke over the area and caused severe damage to the club.
"This has been a devastating loss for the Nambucca Heads community, with the destruction of a much-loved local facility," Fewtrell said.
Firefighters are expected to remain at the club today as they continue to work to extinguish the fire.
The cause of the fire is not yet known.
DOWNLOAD THE 9NEWS APP: Stay across all the latest in breaking news, sport, politics and the weather via our news app and get notifications sent straight to your smartphone. Available on the Apple App Store and Google Play.