The police in the area below are below Grünerløkka with an ambulance, after a message that a man has been killed in a single foot.
The incident had been reported to the police at around 7 am on a Thursday morning.
"The wardens are being transported to hospitals and seem to be unwell," said Operational Manager in Oslo Police Area, Sven Christian Lie to NRK.
According to witnesses, those who committed the crime have to be covered darkly and with Somali origin.
Looking for two
They are now looking for two makers who have been running off the site in an unknown way. The police speak to witnesses at and near the site.
– We have a very vague description of these, called Lie.
A police officer is of the opinion that the incident was not random.
That is, we think it's a friend, he says.