17 U.S. service members have been killed since the war in Iran began.
President Donald Trump announced "major combat operations" against Iran on Feb. 28, with massive joint U.S.-Israeli strikes targeting military, government and infrastructure sites.
Delegations from the U.S. and Iran entered negotiations in June aimed at a war-ending deal based on a memorandum of understanding signed by both countries.
The U.S. and Iran have nonetheless continued to exchange relatively limited strikes despite the signing of the memorandum and amid the continuation of peace talks, with the strategic Strait of Hormuz the primary flashpoint.
U.S. forces hit Iran with another round of strikes on Thursday, according to U.S. Central Command.
"At 2 p.m. ET today, U.S. forces began conducting a new wave of strikes against Iran for the sixth consecutive night to further degrade Iranian military capabilities," CENTCOM said in a statement.
Iran's Islamic Revolutionary Guard Corps issued a warning Thursday, saying it will not "allow" the U.S. to destabilize the region.
"We once again stress that under no circumstances and in no way will we allow the United States, as a foreign and extra-regional country, to interfere in the Strait of Hormuz. This is Iran's inviolable red line," IRGC spokesperson Ebrahim Zolfqari said Thursday.
The IRGC warned that if the U.S. carries out its threat to target Iranian infrastructure, Iran would respond with "strikes that will be more severe, more extensive and more devastating than ever before."
The Kuwait Armed Forces' headquarters said in a post to X on Thursday that the Gulf nation's air defenses were again "confronting attacks by hostile drones" launched from Iran.
The official Jordan News Agency said that the country's armed forces intercepted another eight Iranian missiles early on Thursday morning.
Citing a military official, the agency said there were no casualties and no damage.
