A man has suffered critical head injuries after falling from a staircase at a hotel in Albury overnight.

About 12.50am (Tuesday 1 December 2015) emergency services were called to a hotel on Dean Street where they found a 45-year-old man at the bottom of a stairwell suffering serious head injuries.

He was taken to Albury Base Hospital where he remains in a critical and unstable condition.

A crime scene was established and police from Albury are conducting a full investigation.

Early investigations suggest he may have fallen from the top of the staircase to the concrete floor below.