Switzerland said on Saturday that Oman would host talks between the United States and Iran in Geneva next week, with Washington pushing Tehran to make a deal to limit its nuclear programme.

"Switzerland stands ready at all times to offer its good offices to facilitate dialogue between the United States and Iran," a Swiss foreign ministry spokesman said.

On February 6, Iranian Foreign Minister Abbas Araghchi held talks in Oman with US envoy Steve Witkoff and US President Donald Trump's influential son-in-law Jared Kushner.

The talks were indirect, with the Omanis acting as mediators.

Trump has recently focused his military threats on Tehran's nuclear programme, which US forces struck last July during Israel's unprecedented 12-day war with Iran.

Trump said on Friday that a change of government in Iran would be the "best thing that could happen", as he sent a second aircraft carrier to the Middle East, ratcheting up military pressure on the Islamic republic. (AFP)