Israel has carried out what it described as a “pre-emptive strike on Iran” and said it is braced for a retaliatory drone and missile attack.

Iranian state media reported an explosion north east of Tehran and Israel took credit for a strike.

“Following Israel’s preemptive strike against Iran, a missile and drone attack against the State of Israel and its civilian population is expected in the immediate term,” a statement from the Israeli defence ministry said.

“Therefore, and in accordance with his authority under the Civil Defense Law, Defence Minister Israel Katz has now signed a special order, according to which a special state of emergency will be imposed in the home front throughout the entire State of Israel.”

Plumes of smoke were reported across Tehran.