The motive for the assault, which occurred in a number of areas within the city centre of Kongsberg at round 6.30pm (3.30am AEDT), was not but recognized.
Police stated the suspect had been taken to a police station within the close by city of Drammen however gave no different particulars concerning the man.
“There is no such thing as a energetic seek for different individuals,” Mr Aas stated.
The TV2 station reported that the person additionally had a knife or different weapons.
The wounded have been taken to hospital. Nonetheless, police haven’t stated how many individuals have been damage or given particulars of their situation.
Arrow sticking in wall
Police urged the general public to remain at dwelling and several other neighbourhoods have been cordoned off, with tv footage displaying ambulances and armed police within the space.
A helicopter and bomb disposal group have been additionally despatched to the scene.
The web site of public broadcaster NRK revealed a picture despatched by a witness of a black arrow protruding of a wall.
Police have been anticipated to carry one other press convention at 10pm (7am AEDT).
Norway has historically been a peaceable nation however has suffered far-right assaults.
Proper-wing extremist Anders Behring Breivik carried out twin assaults that killed 77 individuals on 22 July 2011.
Breivik first set off a bomb within the capital Oslo subsequent to the constructing that housed the workplace of the prime minister, then went on a taking pictures spree at a summer time camp for left-wing youths on the island of Utoya.
In August 2019, self-proclaimed neo-Nazi Philip Manshaus opened fireplace right into a mosque on the outskirts of Oslo earlier than being overpowered by worshippers, with nobody being significantly injured.
Nonetheless, he had earlier shot useless his step-sister, who had been adopted from China, in what prosecutors termed a “racist act”.
A number of deliberate jihadist assaults have additionally been foiled by safety providers.