Air raid sirens sounded several times in Bahrain and Kuwait overnight Sunday, with Iran's Revolutionary Guard confirming it had attacked US bases in both countries with drones and missiles.
If the US attacks again, the ongoing peace process will be interrupted, the Guard warns in a message published in Iranian state media.
The attacks show that the United States is not the least bit interested in following through on its commitments, the Foreign Ministry in Tehran said.
“If it happens...”
If the war resumes, the United States will destroy the state of Iran, Donald Trump warned earlier in the night.
"It may come to a point where we can no longer be reasonable and are militarily forced to finish the job we have very successfully begun," the US president wrote.
“If that happens, the Islamic Republic of Iran will no longer exist.”
The United States then attacked Iran from the air again, in attacks that were said to be aimed at weapons depots and radar facilities along the Iranian coast. The attacks were more extensive than those that took place a day earlier, military sources told The New York Times.
The countries accuse each other of violating the ceasefire and the terms of the declaration of intent they signed last week, an agreement that is supposed to be the first step in a planned peace process.
Will do his best
The latest escalation began on Thursday, when a ship in the highly sensitive Strait of Hormuz was reportedly attacked by a drone originating from Iran. Iran and the Revolutionary Guard have described the ship as violating applicable regulations.
The resumption of shipping in the Strait of Hormuz - a bottleneck for much of the world's oil exports - is one of the key points in the declaration of intent. At the outbreak of war, Iran halted traffic with attacks and threats, which shook the world economy.
The 14 points that the countries have agreed on for further negotiations leave a lot of room for interpretation. Regarding the Strait of Hormuz, it states that Iran will “use its best efforts to ensure safe passage” for merchant ships between the Persian Gulf and the Gulf of Oman, without charging any fees, for 60 days from signing.
Ships deemed to be violating the rules will in future receive a much more forceful response, the Revolutionary Guard warns after Sunday night's escalation.
The US and Iran have agreed to a ceasefire and a 60-day deadline to negotiate a peace solution. The 14-point statement of intent was signed on June 17.
In a first stage, both countries and their allies will cease all hostilities. Lebanon's "territorial integrity and sovereignty will be ensured."
The US will begin to lift its naval blockade of Iran and ensure that Iranian crude oil exports can resume. Frozen Iranian assets will begin to be made available.
Iran will ensure that trade through the Strait of Hormuz can resume for 60 days, including through mine clearance. The country reiterates a promise never to acquire nuclear weapons. Negotiations on Iran's nuclear material are linked to the issue of sanctions relief.
In a possible peace agreement, the US will lift all sanctions against Iran and move all military forces from Iran's vicinity. The US, together with partners in the region, will develop a plan in which Iran will receive the equivalent of just over SEK 2,800 billion for "reconstruction and economic development" in an agreement.
The 60-day deadline can be extended. A final agreement must be approved by the UN Security Council.
