Overview

• The explosion struck Pilestredet near the Oslo Met campus, about 500 meters from the Royal Palace and the Israeli embassy, and caused no injuries.
• Officers neutralised a second military‑type hand grenade and issued a rare mobile emergency alert while securing the area.
• Three minors are in child‑welfare custody, with police saying two are 13 years old and may have acted on behalf of others.
• Investigators' leading hypothesis is a settling of accounts between criminal groups, with a nearby venue believed to have been the intended target.
• Police are seeking additional suspects and probing any link to recent drone disruptions at regional airports, as a reported 30,000‑kroner payment to a 13‑year‑old remains unconfirmed.