Police investigators suspect Yigal Amir, who was convicted of assassinating Prime Minister Yitzchak Rabin in 1995 and is serving a life sentence in jail, of threatening his wife's next-door neighbor over the phone.

The neighbor told police Sunday that he asked Amir's wife, Larisa Trimbobler, to fix a drainage pipe that had burst and that Trimbobler refused and answered him in a threatening way. A short while later, the neighbor claimed, he received a call from a man who identified himself as a lawyer and who warned him: "You'll be in trouble with me."

The investigators reportedly found that this phone call was made from a public phone in HaSharon prison. If it turns out to have been made by Amir he is expected to face a disciplinary penalty.