The move could defuse a crisis that has threatened to unseat both Nicolai Tangen and Norway's central bank governor Oeystein Olsen.
Scrambling to control the outbreak,regional authorities have begun to reimpose restrictions on nightlife and public transport that had been lifted weeks ago.
As well as grappling with the coronavirus,Norges Bank Investment Management has been dealing with a botched recruitment process to find a new chief executive.
The controversial hiring of Nicolai Tangen to run Norway's $1.1 trillion wealth fund has reignited a debate over who controls the world's largest sovereign investor.
European countries are moving to curb travel as fears of a second wave of coronavirus sweep across the continent.
Norway will ban all cruise ships with more than 100 people from its ports,as Spain announces its COVID-19 app is twice as effective as human tracers.
Elsewhere,some 40 passengers and crew from a cruise ship tested positive for COVID-19 in Norway,with authorities scrambling to trace passengers who disembarked.
Concern is growing the passengers,who have already begun their voyages home may be potentially spreaders of the virus.
Norwegian performer Kjell Elvis,real name Kjell Henning Bjornstad,started his world-record breaking Elvis Presley singing marathon challenge on Thursday.
Armed police were deployed to the town about 70 kilometres south of the capital Oslo.
The town of Stromstad is paying a heavy price for Sweden's decision not to lock down its economy like neighbouring Norway and other Nordic nations to halt the spread of COVID-19.