Chaotic scenes on Sunday afternoon which saw police attend a street fight and receive reports of a gunshot heard are being treated as two separate incidents.
Officers were called to Magnolia Green in Gorleston on Sunday following reports of an incident in the street involving a group of males.
One of them was carrying a knife and one was seen with an iron bar.
A male aged in his late teens was taken to the James Paget University Hospital in Gorleston with a head wound and a broken finger.
Now police have given an update on this incident.
A spokeswoman for the force said: "A man in his 40s was arrested on suspicion of making threats to kill and was further arrested for grievous bodily harm.
"Both he and the male in his 20s have been released on bail until December 19 while inquiries continue.
"Officers believe all parties involved are known to each other."
The sound of a gunshot was also reported to the police and an air gun was subsequently seized from a property in Oak Road, near to Magnolia Green, where the fight was.
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Officers have now said regards to the Oak Road incident that a man in his 20s has been arrested on suspicion of firearms offences.
He has been taken to Great Yarmouth Police Station for questioning where he remains.
Inquiries are continuing into both incidents and the force has confirmed that they do not believe the incidents to be linked.
Anyone with information is asked to contact Norfolk Police.
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