Police are investigating a serious assault in Lutana last night which resulted in a man receiving significant head injuries.

Around 11.30pm two men and one woman forcibly entered a holiday unit on the Brooker Highway at Lutana.

The 40-year-old man inside the unit attempted to flee and was then assaulted with a weapon, similar to a baseball bat, resulting in him receiving significant head injuries.

A witness stopped to render assistance and the offenders fled on foot and were seen leaving the area in a grey Nissan X-Trail.

Police attended the scene and assisted the injured man until Ambulance Tasmania arrived and transported him to the Royal Hobart Hospital in a serious but stable condition.

The offenders are described as:

• Man aged in his 20s with tattooed face, wearing grey trackpants.
• Man aged in his 20s with a stocky build, wearing a dark hoodie.
• Woman aged 18-23, with straight shoulder length dark red coloured hair, wearing a back hoodie.

Glenorchy CIB would like to speak to anyone with information in relation to the incident, or sightings of the offenders or vehicle around the time.

Information can be provided to Glenorchy CIB on 131 444 or anonymously to Crime Stoppers Tasmania on 1800 333 000.