US President Donald Trump sparked controversy with his unconventional definition of ceasefire, suggesting it means shooting in a more moderate manner, amid ongoing tensions with Iran.
Trump's remarks came as Iran attacked an airport in Kuwait, and the US claimed a self-defence attack on an Iranian facility, putting further strain on a fragile ceasefire.
Despite the escalation, Trump expressed optimism about US-Iran negotiations, saying they were going very well and could potentially lead to a deal over the weekend.
The US-Iran conflict has dragged on for months, with efforts to secure a more durable truce complicated by Israel's military campaign against Iran-backed Hezbollah militants in Lebanon.
A regional official said Iran wanted a separate ceasefire in Lebanon to be enforced before returning to negotiations, highlighting the complexities of the conflict.