Kharg Island is a small, heavily fortified, and strategically valuable island off Iran's northern coast.

Kharg Island lies about 15 miles off the coast of Iran in the Persian Gulf and is critical to the nation’s economy. Iran’s energy industry depends on the landmass. It’s where about 90% of Iran’s crude oil exports are processed and millions of barrels of oil are also stored. Pipelines from some of Iran’s biggest oil fields connect to Kharg.

An air attack struck a factory in the central Iranian city of Isfahan on Saturday, killing 15 people, Reuters reported, citing the Fars News Agency. There were workers inside the factory at the time of the strike,

Sen. Lindsey Graham (R., S.C.) said the bombing of [Kharg Island](