US and Iran hold first talks since June after Trump's 'annihilation' threat

Top Iranian and US officials have held talks at the UN in New York on a day when the US leader said he could "annihilate" the Islamic Republic if the conflict went unresolved.

No breakthrough has been reported from the meeting mediated by Qatar and involving Iran's foreign minister and US President Donald Trump's envoy Steve Witkoff - the first since a June ceasefire unravelled.

Witkoff said a round of discussions had been completed "that we hope will prove constructive and promising". Iran repeated its demand for the US to end its "acts of aggression".

The US and Israel launched air strikes on Iran on 28 February. Iran responded by attacking Israel and US bases in the Gulf and Arab Gulf allies of the US - as well as blocking the Strait of Hormuz.

Some 20% of the world's oil and liquefied natural gas used to pass through the strait before the war and its closure has caused wild fluctuations of prices.

It has also increased pressure on Trump to find a way of ending the conflict - particularly as the US heads to Congressional elections in November.

In his address at the annual meeting of the UN General Assembly in New York on Tuesday, Trump began by touting his accomplishments on the economy, immigration, the border and tackling violent crime - remarks that sounded more pitched to voters the US midterms than the diplomats in the hall.

He spent much of his address justifying the war with Iran - a huge contrast with remarks earlier by UN Secretary General António Guterres, who warned global divisions were deepening and underscored the "interdependence" of the world's peoples.