Satellite images analyzed by The New York Times show the extent of damage at the three nuclear facilities hit by the United States. Fordo is Iran’s most critical nuclear enrichment facility, housed deep inside a mountain to shield it from attacks.

The move, the first time the U.S. has attacked Iran, is a major escalation of the conflict between Israel and Iran.

US President Donald Trump’s decision to strike Iran’s nuclear facilities puts the Middle East in a volatile position, with all eyes now on Tehran’s next move. Speaking in Istanbul, Iran’s Foreign Minister Abbas Araghchi said on Sunday his country has “a variety of options” when deciding how to respond to the US attacks.