A woman in her 50s was found lifeless and with signs of violence on her body in her home in Pardess Hanna-Karkur, Hebrew media reported on Thursday.
First responders performed CPR but had to pronounce her dead at the scene.
A man in his 50s was detained on suspicion of his involvement in the event and the police opened an investigation into the circumstances of her death.
Army Radio reported on Thursday afternoon that murder was ruled out as a cause of death, saying that she had a bad fall and bruised her face.