About 10 million residents of Tehran woke up to a morning covered in thick black clouds, after Israeli attacks hit Iranian oil depots, CNN correspondent Fred Pleitgen reports from the country.
"It looks like the rain, the rainwater, is black, it looks like it's saturated with oil," Pleitgen said in his report. "That's what's happening this morning in the Iranian capital, a kind of oil-filled rain after the attacks."
The attacks have particularly hit the Shahran refinery, which in some videos appears covered in smoke and flames.
A local resident said: "I saw the explosion at night, it lit up the sky, something I had never seen before. It looked like the end of the world, or the beginning of what reminds me of hell."
Tehran Civil Defense warns citizens: Beware of acid rain
The Iranian Red Crescent has warned Tehran residents about the risk of toxic components being mixed into the atmosphere following explosions at oil depots during the US-Israeli attacks on Tehran.

"Dangerous acid rain may occur," the organization announced, noting that some areas of the capital have already begun to be drenched by this rain with harmful compounds.
Civil defense has advised citizens to stay indoors. A large cloud of smoke spread across the sky over Tehran this morning, darkening the horizon, and then a light drizzle of dark rain fell over the capital.