About 5.30am on January 1, officers attached to Central North Police District received reports a firearm had been fired multiple times during a physical altercation on Culgoa Street in Bourke.

Police were told a group of people had congregated on the street during the altercation before a man produced the shortened rifle and fired several rounds of ammunition into the air.

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The group fled the scene prior to police arrival.

Police established Strike Force Glynburn to investigate the incident and wish to speak with anyone who may be able to assist with the investigation.

The man has been described as of an Aboriginal/ Torres Strait Islander appearance, aged about 20 to 30 years old, around 160 to170cm tall, of a heavy build with medium-length hair.

Anyone with information, including mobile phone footage from the area at the time of the incident, is urged to contact Bourke Police Station on 6870 0899.

Alternatively people can contact Crime Stoppers on 1800 333 000 or via their website crimestoppers.com.au.

Information is treated in strict confidence. The public is reminded not to report crime via NSW Police social media pages.