The United States will strike again if Iran fails to comply with the memorandum of understanding (MoU) signed between them, President Donald Trump threatened on Wednesday.

"If they don't behave, we'll go right back to dropping bombs right smack in the middle of their head," Trump said at the G7 summit alongside Egyptian President Abdel-Fattah al-Sisi.

The United States and Iran electronically signed an MoU on Monday to end the war, with an official signing scheduled for Friday in Switzerland.

Speaking to reporters on Tuesday, Trump said the United States would make the Strait of Hormuz fully open by Friday.

However, Israel's Ma'ariv news site reported Monday that Israeli Prime Minister Benjamin Netanyahu has made it clear Israel "does not consider itself committed to the Lebanese clause in the US-Iran agreement." Israel continued its strikes in south Lebanon on Wednesday.

On Tuesday, Iranian Foreign Minister Seyed Abbas Araghchi described ending the war in Lebanon as an "inseparable" part of the Iran-US peace deal.

The G7 summit kicked off on Monday in Evian, a town on the shores of Lake Geneva in eastern France.