IRNA � Iran's government spokesman said on Tuesday that Tehran expects signatories of the nuclear deal to guarantee Iran's oil sale rather than preventing its halt.

Commenting on President Hassan Rouhani's messages to heads of states, Mohammad Baqer Nobakht said that oil is just one of the issues 'we expect' the remaining signatories of the nuclear deal to 'cooperate with us'.

Iran and the five permanent members of the UN Security Council (the US, France, Britain, China, and Russia) plus Germany signed the nuclear deal in 2015. Iran accepted to curb its nuclear program in exchange for economic sanctions relief.

The US President Donald Trump withdrew from the deal in May, calling it the worst deal ever. Washington has also re-imposed the economic sanctions the first set of which will take effect on August 6.

Iran has launched a series of diplomatic efforts, including sending envoys and messages, to get the support of international community for the deal.

'The other issues include banking system, insurance, petrochemicals and shipping,' the spokesman said in a press conference.

'The remaining signatories to the deal should cover the deficiencies and the idea of halting oil imports is nonsense,' he said referring to the US President Donald Trump urging his allies to cut Iran's crude imports by November 4 in compliance with new sanctions.

'We expect the remaining parties to the JCPOA guarantee and facilitate Iran's oil sale, not preventing its halt,' he said.