The US president indicated that he wouldn't allow exceptions for civilian industry

US President Donald Trump has said he wants Iran to completely scrap its nuclear program, as negotiations between the two countries have been postponed.

The president was asked by Kristen Welker on NBC's Meet the Press on Sunday whether he was aiming to limit or completely abolish Iran's nuclear program.

"Total dismantlement. Yes, that is all I would accept," Trump said. He questioned the necessity of the Islamic Republic having nuclear technology for electricity generation. "They have so much oil - why do they need it? ... Civilian [nuclear] energy often leads to military wars. And we don't want them to have a nuclear weapon. It's a very simple deal," he said.

"I just don't want them to have a nuclear weapon because the world will be destroyed," Trump added.

He made his remarks after Omani Foreign Minister Badr Al-Busaidi announced that the fourth round of indirect, Omani-mediated talks with Iran, planned for Saturday, had been postponed indefinitely "for logistical reasons."

The negotiations, previously described by both sides as constructive, have been overshadowed by tensions in Yemen, where the US and Britain have ramped up airstrikes against the Houthi militants.

Israeli Prime Minister Benjamin Netanyahu vowed to retaliate after a Houthi ballistic missile landed near Ben Gurion Airport outside Tel Aviv on Sunday, injuring eight people. The Houthis said they were aiming for a "comprehensive air blockade" of Israel in solidarity with the Palestinians in Gaza. Iran denied directing the Houthi attacks, calling such claims "misleading."

Trump withdrew the US from the 2015 UN-backed deal on Iran's nuclear program during his first term in office, accusing the Islamic Republic of secretly violating the agreement. Tehran denied any wrongdoing but has since rolled back its own commitments under the deal and increased its stockpile of enriched uranium.

Iranian Foreign Minister Abbas Araghchi warned last month that the country would resist any "pressure and threat" from the US.