Fresh explosions were reported in the Iranian capital of Tehran on Sunday afternoon local time after Iran's president warned of "more painful and crushing responses" to Israeli strikes.Footage circulating online on Sunday afternoon Tehran time appeared to show smoke rising from buildings in several locations and at least one video of a burning car.

Iran fired a new wave of missile attacks at Israel, killing at least eight people, while Israel warned hundreds of thousands of people in Tehran to evacuate.

US President Donald Trump is reportedly expected to offer Iran a 'last chance' nuclear offer which may be slightly better than the previous proposal just over a week ago

The warning came on the fourth day of the conflict, when the Israeli military claimed it had achieved air superiority above the Iranian capital and could fly over the city without facing major threats. The military has issued similar evacuation warnings for civilians in parts of Gaza and Lebanon ahead of strikes.

Israel has reportedly carried out a pre-emptive strike targeting sites in Iran, according to Israeli media outlet Channel 12. The attack comes amid heightened regional tensions, with Al Jazeera reporting loud explosions in Tehran shortly after the strike. Axios also confirmed that air raid sirens were heard across multiple locations in Israel.

Israel struck Iran’s state-run television station during a live broadcast, forcing a reporter to run off camera following an explosion, after Iran fired a new wave of missiles at Israel

On Saturday, residents in Tehran reported hearing explosions, and the Iran air defense fired nonstop rounds in the Pastour neighborhood. Precise casualty figures in Iran were difficult to confirm. But Iran’s U.N. ambassador, Amir Saeid Iravani, told the U.N. Security Council that Israel’s strikes in Iran had killed 78 people and injured 329 others.

Israel has launched unprecedented attack on Iran, targeting the heart of nation’s nuclear program and senior military leaders.