A major police operation is currently underway on Parkinson Avenue in Muswellbrook, with residents being urged to avoid the area.

MHV News understands a wanted man has allegedly barricaded himself inside a home and is refusing to surrender to police.

Multiple police units remain at the scene as the situation continues to unfold.

Residents are advised to stay clear of the area and follow any directions issued by emergency services.

MHV News will provide further updates as more information becomes available.