Israel and Iran have begun a new round of attacks, as the conflict between the two heavily armed rivals enters its fourth day.

The already volatile Middle East has plunged into a new and dangerous phase of conflict as Israel and Iran openly traded blows over the past two days

Explosions were heard in the Iranian capital, Tehran, as Israel launched a preemptive strike. Israel is under a state of emergency, as Iran retaliated Friday night with missile attacks.

Fox News reporter Trey Yingst was standing on a balcony as short-range missiles behind him appeared to come closer before being intercepted by Israel's Iron Dome defense system. The footage of the incident preceded a night in which Israel and Iran traded fire, with explosions heard in Tel Aviv, Jerusalem and Tehran.

In other developments, Prime Minister Benjamin Netanyahu said the Israeli strikes have set Iran’s nuclear program back a “very, very long time.” He added that Israel is not attempting to topple the Iranian government, but he said he would not be surprised if that happened as a result of the strikes.