Thick black clouds covered the Tehran areas on Sunday with residents claiming that when it rains, oily residue fell onto the ground following Israeli airstrikes to various oil storage and fuel distribution sites around the Iranian capital that caused massive fires, causing plumes of smoke to fill the Iranian capital.

The attacks, which were declared late on Saturday, were directed to the oil storage tanks and fuel transfer stations in Tehran and the adjacent province of Alborz, as per Iranian media. There were also large mass fires and explosions observed in various areas because the combustible tanks emitted heavy smoke which covered big parts of the city.

The inhabitants reported about a weird dark rain that made the streets, automobiles and buildings black. This was found to be due to the mixing of soot, oil particles and other pollutants of the burning facilities with rain clouds as they swept over the capital.

Governments encouraged their citizens to remain at home and wear masks because of poor air quality. The environmental officials had cautioned that the smoke had hydrocarbons and other chemicals which might irritate the lungs and eyes.

“It is raining oil in Tehran this morning after major airstrikes on oil facilities in the south and west of the capital,” CNN correspondent Frederik Pleitgen wrote on social media.

Fars, an Iranian news agency reported that in the attacks, there were at least four oil storage depots and fuel transfer centres that were hit. There were local reports that a fuel facility was hit in the strikes killing several tanker drivers.

The assault is among the most major attacks on the Iranian energy infrastructure since the present stage of the conflict commenced towards the end of the previous month. Israel has indicated that its military activities are to undermine the strategic and military power of Iran.

Oil Pivotal in Iran Vs US-Israel Conflict

The Iranian leadership has threatened to take revenge as the tension in the region keeps building up. The escalating conflict has already had an impact on shipping operations in the Strait of Hormuz which is one of the most important oil transit routes globally.

“The world is watching the Strait of Hormuz closely because any disruption there immediately sends shockwaves through global oil markets,” one energy market analyst said.

Any kind of disturbance in the Strait of Hormuz has become a global obsession due to the fact that any kind of disruption will automatically cause ripples to the oil markets in the world, as one of the energy market analysts remarked.

To the people of Tehran, though, the burning issues are the smog that stands over the city and the strange black rain that ensued the night of the explosions and fire. Officials reported that the air quality monitoring would be ongoing when emergency personnel tried to contain the fires and know the damage.