Israel carried out "preemptive" strikes against Iran on Friday, targeting its nuclear plant and military sites, after US President Donald Trump warned of a possible "massive conflict" in the region, AFP reports.
Explosions were heard Friday morning in the Iranian capital, state TV reported, adding that Iran's air defence were at "100 percent operational capacity".
Israel declared a state of emergency, with Defence Minister Israel Katz saying that retaliatory action from Tehran was possible following the operation.
"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.
Oil prices surged as much as 6 percent on the strikes, which came after Trump warned of a possible Iranian attack and said the US was drawing down staff in the region.
"I don't want to say imminent, but it looks like it's something that could very well happen," Trump told reporters at the White House Thursday when asked if an Israeli attack loomed.
Trump said he believed a "pretty good" deal on Iran's nuclear programme was "fairly close", but said that an Israeli attack on its arch foe could wreck the chances of an agreement.
The US leader did not disclose the details of a conversation on Monday with Israeli Prime Minister Benjamin Netanyahu, but said: "I don't want them going in, because I think it would blow it."
Trump quickly added: "Might help it actually, but it also could blow it."
A US official said there had been no US involvement in the Israeli strikes on Iran.
