Israel said it had damaged key nuclear sites, and Iran said several top military commanders were killed. President Trump warned Tehran to agree to new limits on its nuclear program or risk “even more brutal” attacks.

Residents of Tehran, the Iranian capital, reported hearing huge explosions and Iranian state television broadcast images of smoke and fire billowing from buildings.

Israel has long targeted Iranian officials for assassination. But these attacks marked a significant shift in tactics, targeting multiple officials at once inside Iran.