Secretary general António Guterres tells security council the Middle East is being pushed to the ‘edge of the unimaginable’ amid latest threats from Donald Trump

• Trump says he is close to decision on largest-yet attack on Iran

Earlier in the US day, before Iran’s Revolutionary Guard said it had stopped three oil tankers from passing through the strait of Hormuz, Donald Trump issued this threat on his Truth Social platform:

From this point forward, any time the Islamic Republic of Iran shoots at a ship in the Strait of Hormuz, whether it be by Missile, Rocket, Drone, or any other device or weapon, the United States will bomb and destroy ONE BRIDGE OR POWER PLANT, including those located next to, or in, the Capital City of Tehran.

US military says commercial ships are continuing to transit the strait of Hormuz, contradicting claims from Iran that the strait has been closed

• US strikes Iran for second day, as ceasefire appears close to collapse

If the US genuinely wants a deal it will have to engage with Iranian demands on sanctions relief, says Danny Citrinowicz, the former head of the Iran branch of Israeli military intelligence.

Today’s exchange of strikes shows how easily both Iran and the US can slide towards another round of escalation, says Citrinowicz, who is now a nonresident fellow at the Atlantic Council.

If Washington is unwilling to accept that reality, it should recognize the likely alternative: continued confrontations with Iran that could eventually spiral beyond anyone’s control and lead to military conflict under less favorable conditions.

Even a limited military campaign designed to weaken Iran would not fundamentally alter Tehran’s negotiating position. It has not happened in the past, and there is little reason to believe it would happen now. Iran emerges from the latest exchange of blows convinced that it can absorb pressure and respond to attacks.”

Legal and moral responsibility of all countries in the region (especially those located along the southern shores of the Persian Gulf) to prevent the US military and Israel from using their territory or facilities to plan, organise, execute, or support hostile actions against Iran.

Israeli prime minister’s remarks come shortly after Trump told US media he had asked Netanyahu to be more ‘low-key’ amid shaky Iran ceasefire. Follow live news

• Israel’s bombing of Lebanon after US-Iran ceasefire prompts condemnation

The UK foreign minister, Yvette Cooper, has said Lebanon must be included in any ceasefire agreement. In other remarks now being reported by Reuters, Cooper added that shipping through the strait of Hormuz must be toll-free.

Amid ceasefire talks, Tehran has proposed fees or tolls on vessels to safely pass through the strait. Donald Trump on Wednesday suggested the US and Iran could collect tolls in a joint venture, while the White House said the priority was reopening the strait without limitations.

And my principles and values made sure that our decisions were that we wouldn’t get involved in the action without a lawful basis, without a viable, thought-through plan.”

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Houthi forces in Yemen have claimed responsibility for a missile attack on southern Israel this morning, saying it was a joint operation with Iran and Hezbollah.

In a statement, the Houthi movement said it carried out its third missile attack in the conflict “in conjunction with Iran and Hezbollah in Lebanon”.

Suspect remain at large as Ivy League university tells students to shelter in place

• Full report: Multiple people shot at Brown University in Rhode Island, police say

• What we know so far about the Brown University shooting

Police said no weapons were recovered from the scene and the last sighting of the suspect was him leaving the Hope Street side of the building on foot.

Timothy O’Hara, a deputy police chief, told a press conference that the suspect is a “male dressed in black” who exited the complex at Brown University.