The defense minister added that Israel will now start attacking new kinds of strategic targets in Iran.
IAF intercepts Iranian drones near Dead Sea • IAEA chief identifies Isfahan as Iran's planned uranium enrichment site • Smoke, explosions in Tehran, Rasht
Katz said "symbols of the regime are being blown up and collapsing, from the official state broadcaster and soon other such targets."
Movshovitz is the 11th casualty of the security agency since the October 7 massacre.
This constitutes the most clear escalation of Israel considering assassinating Khamenei to date.
This follows an Israeli strike on the Islamic Republic of Iran News Network (IRINN), operated by IRIB, earlier the same day.
In the coming hours, Israel is expected to order residents of various neighborhoods in Tehran to evacuate, followed by strikes on infrastructure and government buildings.
The seven were the only cabinet members who knew about the expected strike prior to the full cabinet meeting on Thursday evening.
Israel had prepared for the possibility that the war could last for weeks, but that timeline may now be shortened.
Katz's statements come after Iranian missiles struck central Israel, with over 10 Israelis killed and at least 250 wounded within two days.