A woman is in custody following the death of an 80-year-old man in the Cairns suburb of Palm Cove.
Police said emergency services were called to an address on Williams Esplanade on reports of a serious assault about 10.50pm on Tuesday and found the man with stab wounds.
He was taken to Cairns Base Hospital in a critical condition, where he died from his injuries.
A 58-year-old woman was taken into custody at the scene and is assisting police with inquiries.