Authorities are seeking details after discovering a man with gunshot injuries and burns on his legs in Perth yesterday evening.

The man was located unconscious outside the Rockingham Hospital emergency entrance, suffering from several gunshot wounds shortly before 10pm.

Police suspect he is associated with the Comanchero motorcycle gang.

They said his injuries were the result of a targeted attack.

Police said a group was seen arriving at Aubin Grove Train Station in three cars.

They believe that a group of men got out of the cars and swapped vehicles.

CCTV later showed one of the cars arriving at the emergency department.

Police believe the Holden ute was used to take the injured man to the hospital.

Anyone with further information has been urged to contact police or Crime Stoppers on 1800 333 000.