Two men are assisting with inquiries after an alleged assault at a dance party in Marrickville today (Sunday 20 September 2015).

Police were called to a warehouse on Fitzroy Street about 3.30am where they found a 23-year-old man with a head wound. It is believed the man hit his head on the ground after being punched.

He was assessed on site by NSW Ambulance Paramedics before being taken to Royal Prince Alfred Hospital for further treatment.

He is in a stable condition and his injuries are not considered to be life threatening.

The men, both aged 21, were arrested nearby and taken to Newtown Police Station.