The United States said it bombed Iranian radar and drone sites after Iran shot down an American drone, prompting Iran to claim it launched a retaliatory strike while Kuwait reported incoming fire.
Although a ceasefire remains in place, repeated attacks between the two sides continue to threaten peace efforts.
Officials from both countries are still negotiating, but uncertainty remains over how close they are to reaching a deal.
Iran has continued to control the Strait of Hormuz, disrupting energy supplies and increasing fuel prices worldwide, the AP has reported.
At the same time, fighting between Israel and Hezbollah has intensified, with Israel expanding operations in Lebanon and Hezbollah launching drones into Israel.
