Two people have died and several have been seriously injured in a

shooting at a bar in central Oslo

on the night of Friday to Saturday, Norwegian police announced.

The security body noted on Twitter that it had arrested a suspect.

Norwegian media evoke

shots in three different places.

Public broadcaster NRK and other local media reported that the shooting had taken place at the

London Pub, a popular gay bar

and nightclub in the city center.

Facade of the London Pub in Oslo.

Scene of the attack.Google Maps

"I saw a man arrive with a bag, he took a gun and started shooting," NRK journalist Olav Roenneberg told the station's news website.

A suspect was arrested nearby, Norwegian police have announced, without giving details on

what the motive for the attack was.

Oslo is scheduled to hold its annual Pride parade this Saturday.

Meanwhile, the Oslo university hospital said it had gone on red alert after the shooting

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