One person has died after a shooting at an "unsanctioned" lakeside party in the US state of Oklahoma on Sunday, where roughly 22 others were injured, local officials say.

The deceased was described by police as an 18-year-old woman, part of a "large crowd of young adults" who gathered near Arcadia Lake when gunfire erupted about 21:00 local time.

The injuries ranged in severity and included gunshot wounds, police said. Several people were taken to hospital, while some drove themselves.

Over 48 hours since the incident, no arrests have been made but police do not believe there is an ongoing threat to the public.

Police for the city of Eastern Edmon posted a statement on Tuesday saying their thoughts were with the loved ones of the deceased and "all those affected by this tragic incident".

They added that they were working "to confirm details and release appropriate information" and "this investigation is being handled with the utmost care and seriousness".

Police said the incident occurred during "an unsanctioned party that began after dark" that was advertised on social media.

A leaflet seen on social media detailed an event called Sunday Funday, which was scheduled to take place near the lake on Sunday evening, US media report.

"This is obviously a very terrifying situation and we understand the concern from the public and those involved and we are working extremely hard to find the suspects," police spokesperson Emily Ward said.

A hospital system spokesperson said nine people were at Integris Health Baptist Medical Center, in Oklahoma City, and three others were at Integris Health Edmond Hospital, the BBC's US partner, CBS News, reported.

The spokesperson said the patients were still being assessed late Sunday night.

Arcadia Lake is an artificial reservoir that is also popular for fishing, picnics and camping.

Police have set up a reunification centre for families at a nearby Walmart, according to local media. (BBC)

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