Correction, 13 November: This story first said the video appeared to show an attack in an Invercargill park. That was how the Facebook page that posted it described it when we published on Thursday night. At 12.38am on Friday the page edited its post to say the footage is from Dunedin. We have updated this story.

A video shared on social media appears to show a young man being attacked in a park at night.

The footage was posted on Thursday by NZ Uncensored 3.0, a Facebook page that shares video sent in by the public.

When first posted, the page described it as "sent-in footage from Invercargill". It has since changed the post to say the footage is from Dunedin.

The page says the young man was attacked over things he had posted online about a friend of the attackers who has died.

The Invercargill Herald has not been able to confirm where or when the video was filmed, who was involved, or whether anyone was hurt.

The Herald is not publishing the video, and has blurred the still above so no one in it can be identified.

The Herald is seeking comment from police. This story will be updated when police respond.

If you have information

Anyone who knows anything about the incident can contact police on 105, either by phone or online at 105.police.govt.nz.

Information can also be given anonymously through Crime Stoppers on 0800 555 111.

In an emergency, call 111.

Young people who need to talk to someone can call Youthline free on 0800 376 633, or call or text 1737 at any time.