A suspect has been arrested and the situation is under control, a Norwegian police press secretary told CNN on Wednesday.
The alleged attacker was using a bow and arrows, a spokesperson for local Kongsberg police also said.
Police were first alerted to the suspect at 6:15 p.m. local time, the spokesperson said. He added that the suspect attacked people in several places before being arrested.
When asked if the situation was being treated as terrorism, the Norwegian police press secretary said it was “not yet clear, it is too early to tell”.
Kongsberg is located 85 kilometers west of the capital Oslo.