Iran carried out drone and missile attacks on Bahrain and Kuwait on Sunday, describing the moves as retaliation for U.S. airstrikes. Bahrain and Kuwait both reported interceptions, while Bahrain said at least one attack damaged a residential building near the international airport. Iran’s Revolutionary Guard claimed responsibility.

The attacks come as diplomats try to finalize an interim arrangement aimed at ending wider conflict and reopening the Strait of Hormuz without Iran’s direct oversight. Iran insists the strait must remain under its control and warns that any separate arrangements would delay reopening and raise tensions—while the United States and Iran work through details including shipping routes, removal of a U.S. blockade and sanctions, and issues tied to Iran’s highly enriched uranium stockpile. The interim framework gives the parties a limited window—60 days—to negotiate terms.

Both sides have tied the diplomatic process to continued military activity, and the crossfire has threatened to torpedo the deal before it can be finalized. The escalation also adds pressure at other fronts, including continuing fighting in Lebanon, which analysts and officials say could further destabilize efforts to reach a broader ceasefire.