State Department tells Americans worldwide to 'exercise increased caution'

The head of the International Energy Agency said the war in Iran is the greatest threat to global energy “in history” and warns people don’t yet understand how bad the situation is.

“People understand that this is a major challenge, but I am not sure that the depth and the consequences of the situation are well understood,” Executive Director of the International Energy Agency, Dr. Fatih Birol said in an interview with the Financial Times.

He added that “vital arteries have come to a halt," hitting the world’s supply of fertilizers for crops, petrochemicals for plastics, clothes and manufacturing, as well as sulfur and helium.

“These are vital commodities for the global economy,” he said.

Even if the conflict ended and the strait reopened, Birol said “it will take a long time” to bring oil and gas fields, many of which have been shut down or damaged, back online.

“It will be six months for some [sites] to be operational, others much longer,” he said.

The Israeli military said Friday that it has struck more than 2,000 "terror targets" since the start of its ongoing operation in Lebanon, according to a statement from the Israel Defense Forces

"In addition, over 570 Hezbollah terrorists were eliminated. This includes approximately 220 Radwan Force operatives, around 150 surface-to-surface missile operatives, two commanders with the equivalent rank of Major General, four commanders with the equivalent rank of Brigadier General, eight commanders with the equivalent rank of Colonel, and 22 battalion-level commanders," the IDF said in the statement.

"The IDF will continue to operate with force against Hezbollah after the terrorist organization chose to join the conflict in defense of the Iranian terror regime. The IDF will not allow Israeli civilians to be harmed," the statement continued.

-ABC News' Morgan Winsor

Kuwait said Friday that its Mina Al-Ahmadi oil refinery was attacked by Iranian drones for the second day.

No injuries were immediately reported, but fires erupted in several of the refinery's units, prompting a partial shutdown, according to the state-owned Kuwait Petroleum Corporation, which operates the facility.

Firefighters were at the scene Friday morning working to extinguish the flames, according to the Kuwait Fire Force.

-ABC News' Morgan Winsor

Qatar’s state energy company, QatarEnergy, said that the missile strikes on its Ras Laffan terminal on Wednesday knocked out 17% of its liquefied natural gas (LNG) export capacity.

The strikes caused an estimated loss of $20 billion in annual revenue and is expected to take up to five years to repair, officials said.

The terminal is the world’s largest and is responsible for a fifth of global LNG exports.

"This was an attack on all of us who stand for development and human progress that is sustained by a fair, reliable, and secure access to energy,” Qatar's minister of energy said in a statement confirming the damage.