Local media stated that Israeli Prime Minister Naftali Bennett received a threatening letter with a bullet on Tuesday.
According to the Israeli Public Broadcasting Corporation (KAN), police have opened an inquiry into the letter, which was addressed to Bennett’s residence in the central Israeli city of Ra’anana.
The letter’s origins is being investigated by Israel’s Shin Bet internal security agency and the police.
The Shin Bet has also stepped up security for Bennett’s family.
“No matter how deep the political strife may be, it should not reach the level of violence, bullying and death threats,” Bennett said in a post on Twitter.
“We need to do everything, as leaders and as citizens whose future and the future of their children is in this country, so that such phenomena simply do not exist.
“We are all people. Arguments and disagreements – yes. Bullying and threats – no,” he said.
“Besides being a politician and Prime Minister, I am also a husband and a father. So I have to protect my wife and children as well,” he noted.
He called on politicians, particularly those who actively use social media, for calm and reconciliation.
Israeli police had taken action against some citizens on the grounds that they had threatened Bennett before.