In a "random" stabbing attack in southeastern Norway on Friday, three people so far have been reported injured - one severely, according to local police. 

A suspect has been arrested, without specifying the motive of the attack, revealing that it seemed that people were being attacked at "random".

"At this stage: three people injured and one person critically injured," the police wrote in a tweet.

Last October, a Danish man targeted shoppers in a small Norwegian town with a bow and arrow, killing five before getting arrested.

Two other people were wounded and hospitalized in intensive care, including an off-duty officer visiting the shop where the attack took place, authorities revealed.

The police chief in the community of Kongsberg, near the capital of Oslo, said that “a confrontation” between officers and the assailant took place but did not elaborate on that regard.

The trial of the Danish national accused of that attack, who experts say suffers from psychiatric problems, started on Thursday.