An Israeli security source said that strikes on Iran would continue for "as long as we need," after the US and Israel began targeting military and ballistic missile sites in the Islamic republic on Saturday morning.
"We will continue our operations right now, as long as we need to, to ensure that the Iranian regime cannot restore those capabilities to the region and the broader international stability," the source told journalists, speaking on the condition of anonymity.
Earlier on Saturday, US President Donald Trump confirmed that the military had begun "major combat operations" in Iran after Israel launched what it called a "pre-emptive" strike on Tehran.
"Our objective is to defend the American people by eliminating imminent threats from the Iranian regime," Trump said.
Tensions in the region have been high as Washington and Tehran try to reach an agreement on a deal to limit Iran's nuclear activities.
Follow our live coverage as our journalists track developments.