Iran's airspace closed following Israeli airstrikes

"Homes of senior military and political officials were targeted in Israeli airstrikes in Tehran," a senior Israeli political official told Iran International, speaking on condition of anonymity.

"Civilians are not the intended targets," the official added.

Israeli Defense Minister Israel Katz has announced a nationwide special state of emergency on the home front, warning that a missile and drone assault targeting Israel is likely imminent following the country’s “preemptive” strike on Iran.

"Following the State of 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 future,” Katz said.

Israel has launched strikes in Iran, Axios reported citing two sources.

Multiple explosions have been heard in several parts of Tehran, according to Iran’s state TV.

An Israeli strike against Iran could come as soon as Sunday unless Tehran agrees to halt production of fissile material that can be used to make an atomic bomb, The Wall Street Journal reported citing a senior Israeli official.

Israeli Prime Minister Benjamin Netanyahu raised the possibility of strikes in his phone conversation with President Donald Trump on Monday, the report added.