Israel launched a series of strikes against Iran on Friday morning, targeting nuclear sites, missile facilities and other military infrastructure. The strikes were also a major blow to Iran’s chain of command, killing top generals.

Where Israel attacked Iran

Iran vowed a harsh response, and it launched at least 100 drones in an initial wave. There were no immediate indications of significant damage caused by the drones, and it was not clear if they succeeded in penetrating Israel’s airspace.

Iran launched retaliatory attacks

Tehran

Residents of Tehran, the Iranian capital, reported hearing huge explosions and seeing Israeli fighter jets.

A view of Tehran after multiple explosions.

Arash Khamooshi for The New York Times

Iranian state television broadcast images of smoke and fire billowing from buildings.

A building in Saadat Abad Street was hit after Israel’s attack in Tehran.

Arash Khamooshi for The New York Times

Israel attacked military bases around Tehran, including Parchin. Multiple residential buildings were also attacked, including highly secure complexes for military commanders, in what appeared to be targeted assassinations, according to four senior Iranian officials.

Natanz nuclear-enrichment complex

Social media footage verified by The New York Times, as well as an Iranian news report, show flames and thick black smoke from the Natanz nuclear enrichment complex.

Natanz is Iran’s main nuclear enrichment facility. It is where Iran has produced a vast majority of its nuclear fuel — and, in the past three years, much of the near-bomb-grade fuel that has put the country on the threshold of the ability to build nuclear weapons.

Synthetic aperture radar image from Umbra Lab

Bora Erden and Christoph Koettl/The New York Times

Tabriz

Tabriz, a city in northwestern Iran, was hit on Friday. Social media footage verified by The Times shows that an airport in the city was hit by Israeli strikes.

Large plumes of thick black smoke were seen over Tabriz as several apparent strikes continued to hit the area.

Kermanshah

Video verified by The Times shows large plumes of dark smoke near a mountain range in Kermanshah, in western Iran, on Friday morning.

The smoke appeared to be rising from an area believed to be the site of an underground missile base. An Iranian army aviation base and an Islamic Revolutionary Guards Corps facility are also nearby.