Republicans and some Democrats offered strong support for Israel’s move, but many Democrats called for de-escalation and warned of the consequences of a broader war.

Three people have been killed in Israel, according to officials and local media, with both sides saying the strikes will continue.

A strike on a live nuclear reactor could unleash radioactive leakage capable of endangering civilian populations hundreds of kilometers away, depending on the severity of the breach.

Pakistan has condemned the unprovoked Israeli assault on Iran, calling it an "unacceptable violation of international law" after Tehran's nuclear and military facilities were targeted early morning on Friday that resulted in the deaths of Iranian nuclear scientists and the military's top officials.