Detectives are investigating a possible shooting at Muswellbrook overnight.
Around 9.15pm, police were told a 28-year-old man had presented to hospital with a gunshot wound to his upper left thigh.
A home on Richmond Street was declared a crime scene with officers seizing a number of items for examination.
The man was taken to the John Hunter for treatment; his wound is not considered life-threatening.
Police are appealing for anyone with information to come forward.