Police are investigating a wounding incident at the North West Regional Hospital in Cooee where a medical professional has received a serious injury.

Police were called to attend the hospital at about 4.30pm and took a youth into custody a short time later.

The victim has been airlifted to the Royal Hobart Hospital in a critical condition.

The incident was isolated and there is no threat to the wider community.

Police remain at the scene conducting investigations.

If anyone has any information that may assist police with this matter they are encouraged to call police on 131 444 or Crime Stoppers via www.crimestopperstas.com.au.