The International Atomic Energy Agency declared Iran was in breach of its Nuclear Non-Proliferation Treaty obligations by failing cooperate with an probe into undeclared nuclear material and activities at multiple sites.

Following Israeli strikes that killed seven officials, including nuclear scientists, Iran vows to continue uranium enrichment despite U.N. nuclear watchdog's formal rebuke.

After decades of threats, Israel launched an audacious attack on Iran, targeting its nuclear sites, scientists and military leaders. Here’s what to know about its controversial nuclear program.