Police are urging members of the public to come forward with information following an early morning assault in Dunedin. 

A police spokeswoman said officers received reports of the attack outside Rodgers House at the intersection of Princes and Dowling streets about 2.45am on Saturday. 

She said initial reports suggest a man had been assaulted by two unknown men in an "apparent unprovoked attack". The offenders were then seen running south down Princes St towards Queens Gardens.

The victim was taken to Dunedin Hospital in a serious condition.

An investigation into the assault is underway and police would like to hear from anyone who may have witnessed the incident or who has information which may help, the spokeswoman said. 

Anyone with information can contact police on 105 quoting file number 191012/7494, or call Crimestoppers anonymously on 0800 555 111.