Thick black smoke billowed into the sky, making day seem more like night. Toxic rain mixed with oil fell from the air, while a central boulevard was lined by a wall of flame. In the Iranian capital, authorities said Israeli strikes hit a number of oil and gas facilities in and around the city. In one video geolocated by NBC News, roiling orange flames and belching smoke could be seen rising from the Aghdasieh fuel depot in the city’s northern Tajrish district. 👇🏻⬇️more in the 1rst comments ⬇️👇🏻

Tehran has been a focal point of the war, slammed by strikes from the United States and Israel that have shaken windows and given residents sleepless nights. Some have taken to standing on rooftops to watch the incoming attacks.

As the sky filled with black smoke Sunday, security forces directed traffic while wearing special coats and masks to protect themselves.

Carried out by the Israeli military, the attacks may show that “the risk appetite in the U.S. and Israel in terms of the mission is different,” according to Michael Stephens, a senior associate fellow at the Royal United Services Institute, a think tank based in London.

He said it was a recurring theme throughout this conflict: “There are different U.S. and Israeli timelines, mission goals and objectives, and a lack of alignment” on the risks they were prepared to take, he said.

The White House did not immediately respond to NBC News’ request for comment.