A 56-year-old man has been airlifted to Royal Darwin Hospital after he collapsed whilst fishing off the coast of Channel Point, 240 kilometres south west of Darwin.

CareFlight, operating the Top End Medical Retrieval Service on behalf of the Northern Territory Government, tasked the Top End Fixed Wing King Air to the area just after midday today.

CareFlight’s doctor and nurse provided on-site treatment for the man before flying him to Darwin.

He was transferred to Royal Darwin Hospital in a critical condition.