“The incident last night had a tragic outcome where one woman in her 50s died, another was seriously injured and a third injured but with less serious injuries,” police inspector Agnes Beate Hemioe said in a statement.
Police said one of the women had recognized the suspected stabber and that the assailant — a 31-year-old Norwegian citizen of foreign origin — was later detained in his apartment in central Sarpsborg. He has been arrested and will be charged with murder and attempted murder, police said.
The motive behind the attacks remains unclear. and Hemioe said police have no information linking the perpetrator to the deceased. However, police said there appeared to be a relationship between the man and the two other women.
There are currently no signs of other attackers being involved. Local newspaper Sarpsborg Arbeiderblad said the suspected attacker had a history of violence. Police said the man had previously been charged — but not convicted — with violent behavior.