"I have just learned from the ship owner (Hoegh Autolners) that the vessel has not made any significant sighting so far today," Haakon Svane of the Ship owner's Association told broadcaster NRK early Friday.
Visibility was expected to improve slightly compared to Thursday, Svane added.
The Hoegh St Petersburg, which is transporting cars, has a 19-strongFilipino crew. The vessel was asked to take part in the search by the Australian Maritime Safety Authority.
DPA