TEHRAN: Iran and the EU agreed Thursday to hold further dialogue in Brussels aimed at resuming talks on a faltering 2015 nuclear deal between the Islamic republic and world powers, Tehran said.

The European Union envoy charged with coordinating talks on reviving the Iran nuclear deal, Enrique Mora, met with Iranian deputy foreign minister Ali Bagheri for several hours, as Western powers lose patience with Tehran over the continued absence of a firm date for resuming talks. Dialogue on the deal has been stalled since June.

"At the end of this meeting, the two parties agreed to continue dialogue on questions of mutual interest in the coming days in Brussels," Iran's foreign ministry said in a statement, which noted that Mora said the EU was "ready to collaborate with Iran and the other parties".

The talks coincided with a visit by EU foreign policy chief Josep Borrell to Washington for talks with US Secretary of State Antony Blinken, who on Wednesday warned of "other options" if diplomacy fails.

At the same time, his visiting Israeli counterpart reserved the right to use force. The 2015 nuclear deal, which gave Iran sanctions relief in return for curbs on its nuclear activities, has been on life support since 2018, when then US president Donald Trump unilaterally pulled out.

Trump reimposed crippling sanctions while Iran, which insists its nuclear programme is for civilian purposes only, gradually rolled back its own commitments. Mora's trip to Tehran came with pressure mounting from EU countries as well as the United States for a swift resumption of talks on Washington's return to the agreement.