Overview

• The explosion occurred in the Pilestredet and Parkveien area near a university campus about 500 meters from the royal palace and the Israeli embassy.
• Bomb disposal teams conducted a controlled detonation of a second device that appeared to be a military-style hand grenade, according to the officer in charge.
• Authorities issued a rare mobile alert instructing residents to stay away from windows as police cordoned off the scene and secured the area.
• One person was apprehended for questioning as police seek more information and other possible suspects; local media reported the detainee is 13, which police did not confirm.
• Tram services near the scene were halted during the response, and police later said the area was safe, with no established link to drone sightings reported near Oslo and Copenhagen airports the previous day.