The Greek tanker Sola TS had urged a Norwegian frigate to turn ahead of a serious collision last Thursday off Hjeltefjorden.
The Helge Ingstad was warned four times about the impending clash, according to a recording of communications cited by the Verdens Gang daily.
The 113,000-dwt Tsakos Energy Navigation aframax (built 2017) told the ship to move to starboard, the report said.
