Norway shooting: 4 injured as gunman opens fire at Oslo nightclub

A man armed with a handgun has shot four people outside a nightclub in Oslo, Norway.

The gunman opened fire outside Blue nightclub in the Norwegian capital in the early hours of Sunday morning. Police said they have arrested one suspect and are not searching for anyone else.

The four victims were rushed to the hospital, but the extent of their injuries is not yet known, Oslo police said on Twitter.

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