Norwegian police say they have shot and killed an armed man who was threatening passers-by in Oslo.
Police said they were alerted to a "serious" incident in the north of the capital on Tuesday morning.
Norwegian media published footage of the alleged attacker, naked from the waist up and wielding a knife.
Police initially suggested that passers-by had been wounded, but later said that only one police officer was slightly hurt.
Police said a patrol car in the Bislett neighbourhood of Oslo drove into a building to halt the man's progress. He then attacked the vehicle and managed to open the car door, police spokesman Torgeir Brenden said.
He said “several shots” were fired at the man but did not specify whether it was the police officers in the car who opened fire.
"The perpetrator was taken to Ullevål hospital and has been confirmed dead as a result of the injuries the police inflicted on him," a statement read.
We have so far no information that this is terror-related,” Senior Police Chief Egil Joergen Brekke told a news conference.
"This appears to be a stand-alone act so there is no reason for others to fear for the safety of the city. This is a person who is known to us in the past and who has a history."
The Norwegian Bureau for the Investigation of Police Affairs is also probing the events -- a custom in Norway when police officers use firearms.
Last month a man armed with a bow and arrow and a knife killed five people in a small town southwest of Oslo.