In his first public speech since taking office last June, he added that the Mossad had thwarted dozens of Iranian attempts to target Israelis in the recent period, stressing that the Israeli response would be painful and inside Iran, if it touched Israelis.

He also indicated preventing 3 Iranian cells in Turkey from killing Israelis, and thwarting other attacks against businessmen and diplomats in Cyprus, Colombia and many other places.

"Once the agreement is signed, there will be no restrictions on Iranian terrorism," he said, referring to the "huge sums of money that will be given to Iran," according to the Jerusalem Post.

Barnea also said that Iran's leadership must understand that any direct or indirect attack against Israel or against Israeli citizens will be answered with "a painful retaliation" against those responsible, Axios reported.

Barnea explained that the investigations opened by the International Atomic Energy Agency at uranium enrichment sites cannot be closed despite Iran's demands, because this will only lead to a nuclear escalation.

"If Iran's proxies come for us, we will hit them directly," he added.

Israel accused Iranian agents of planning to target its citizens in Turkey last June, which Tehran denied.

At that time, the Turkish police arrested a cell comprising 5 Iranians, which had planned to kidnap and target Israelis in Istanbul.

Israel urged its citizens to exercise caution after credible threats of Iranian agents planning to kill or kidnap Israelis, especially after the escalation of tension with Tehran, after the latter accused Tel Aviv of carrying out assassinations and sabotage on its soil.

During the past months, Iran witnessed the killing of a number of Revolutionary Guards officers and nuclear workers. Fingers were pointed at Israel, and as usual,  Israel remained silent on the issue.