But an escalation of the situation has seen another 11 crew members, believed to be Syrian, refusing to get back on the ship and are now claiming asylum.
The Townsville Bulletin reports those crew members have tested negative to Covid-19. The man on the run had not been tested.
They are now being detained by the Australian Border Force and will be moved to hotel quarantine at an undisclosed location outside of Townsville.
Another 37 crew of the Polaris 3 remained on the ship and has reportedly been cleared to exit the port. On Sunday night the ship was still moored in Townsville.
News.com.au has contacted Queensland Health and the Australian Border Force for comment.
"Australian Border Force are working with Queensland Police Service in relation to one crew member who is currently unaccounted for," Federal Herbert MP Phillip Thompson told the Bulletin.
The Polaris 3 is a livestock carrier that was built in 2008 and is sailing under the flag of Panama.