A violent incident occurred in the Grønland area of Oslo, leaving one person seriously injured and another in police custody.

The Oslo police responded swiftly to the scene after reports of violence and potential gunfire.

Although a firearm was seized, no gunshot wounds were reported.

The injured individual, a man in his 30s, suffered severe head and upper body injuries from physical assault, reportedly involving a metal suitcase.

Witnesses described a brutal attack, which police believe was not random.

The situation is under control, with no further threat to the public, as authorities continue to investigate the incident's background.