Iran's Supreme Leader Ayatollah Ali Khamenei has been killed in Israeli-US attacks, according to Israeli media reports and a senior Israeli official.

Israeli Prime Minister Benjamin Netanyahu claimed there were "growing signs" that Khamenei was killed in the joint US-Israeli strikes launched early on Saturday.

Reuters news agency, citing a senior Israeli official, reported on Saturday that Khamenei's body has been located.

But Iran's Tasnim and Mehr news agencies reported Khamenei remained "steadfast and firm in commanding the field".

In response to the claims, the head of public relations at Khamenei's office accused the country's enemies of "mental warfare".

Reporting from Tehran, Al Jazeera's Tohid Asadi said there has so far been no official confirmation from Tehran.

Iranian Foreign Minister Abbas Araghchi told NBC News that "as far as I know" Iran's Supreme Leader and other top officials remain in good health.

US President Donald Trump told NBC News in an interview that he believed reports of Khamenei's death were a "correct story".

Saturday's strikes on Iran targeted 24 provinces, killing at least 201 people, according to Iranian media reports citing the Red Crescent.

Iran responded with a wave of counterattacks targeting Israel and US military assets across the Middle East.

Netanyahu said in his address that many "senior figures" had been "eliminated" in the military strikes, while Trump called for the government to be toppled.

Source: www.aljazeera.com