Iran's foreign ministry on Monday warned South Korea against military deployment or involvement in U.S. operations in the Strait of Hormuz, saying such a move would have "serious consequences".

Yemen's Houthis on Monday accused Saudi Arabia of carrying out airstrikes on various areas of Yemen as the rebels push on with an offensive to seize territory bordering the strategic Bab al-Mandeb strait.

Iran's top negotiator on Sunday threatened a more forceful response to any further U.S. attacks after Tehran targeted American warships in their latest round of clashes.

President Joseph Aoun urged Washington and the international community to help stop Israeli attacks, which killed at least seven people on Sunday despite a truce and a framework deal aimed at halting the violence.

Israel said it had targeted Hezbollah operatives and sites in response to a drone attack a day earlier by the Iran-backed group on its troops in the vicinity of a strategic south Lebanon ridge.

Lebanon's health ministry said four people were killed on Sunday in strikes which Israel said it carried out after Hezbollah had launched drones at its soldiers in south Lebanon, the latest escalation amid a fragile truce.

American envoys discussed "substantive plans" for next steps to end the Ukraine war during their meeting with Russian President Vladimir Putin, the White House said, before they headed to Kyiv on Sunday.

Iran said Sunday that its forces attacked a U.S. naval drone trying to enter the Strait of Hormuz, hours after targeting ships in retaliation for American strikes on three oil tankers.

Iranian authorities have arrested a number of people accused of appearing in a rare video waving the flag of an outlawed opposition group, state television said Sunday.

In recent talks with Lebanon, Israel demanded information on the remains of Lebanese Jews kidnapped and assassinated during the country's civil war from 1975 to 1990 by groups linked to Iran-backed Hezbollah.

President Donald Trump said that the Iran war was "small potatoes" for the United States, in his administration's latest bid to play down the conflict ahead of crucial midterm elections.