Israel appeared to be expanding its air campaign on Tehran five days after its surprise attack on Iran's military and nuclear program, as U.S. President Donald Trump posted an ominous message warning residents of the city to evacuate.

Israel attacked Iranian state television after Iran fired another wave of missiles at Israel on the fourth day of open warfare between the regional foes.

Israel struck Iran's state-run television station during a live broadcast, forcing a reporter to run off camera following an explosion.