Police are calling for information in relation to a serious incident at Kayena in the state's North East this morning.
Police and emergency services were called to Rowella Road shortly before 8am after reports a man had been hit by a vehicle following an altercation with the driver.
The driver of the vehicle, who contacted police, was not physically injured.
The injured man was taken to the Launceston General Hospital by ambulance where he remains in a critical, but stable condition.
The driver was taken into custody for the purpose of mandatory blood testing and is continuing to assist police with their inquiries.
Crash investigators remain at the scene.
Anyone with information or dash cam footage is asked to contact police on 131 444 or Crime Stoppers anonymously on 1800 333 000 or online at crimestopperstas.com.au
