Firefighters are battling a caravan fire in Ellalong after the blaze became fully engulfed and threatened a nearby house.

Emergency crews were called to Helena Street shortly after 10.10am on Wednesday following reports of a domestic fire. Initial information indicates the fire involved a caravan, with flames spreading rapidly and posing a risk to a nearby residence.

Multiple fire crews responded to the incident and worked to contain the blaze and protect surrounding properties.

There have been no immediate reports of injuries.

Residents in the area are urged to avoid Helena Street and follow the directions of emergency services.

More to come as information becomes available.