Macron's office said the French leader also asked Rouhani to fully cooperate with the UN nuclear watchdog, the International Atomic Energy Agency, on inspections and expressed his "deepest concern" over Iranian violations of the accord.

The 2015 deal -- called the Joint Comprehensive Plan of Action (JCPOA) -- has been hanging by a thread since former US president Donald Trump withdrew Washington from it and reimposed punishing sanctions on Iran in 2018.

French Foreign Minister Jean-Yves Le Drian confirmed Tuesday that France, Britain and Germany will put forward a resolution at this week's meeting of the IAEA's board of governors condemning Iran's suspension of some nuclear inspections.

The Iranian parliament in December passed a law that called for suspending certain commitments if the US does not lift unilateral sanctions or the three European countries do not help Tehran to bypass those sanctions.

Restrictions on inspections went into force on February 23.

Under the agreement with the IAEA, that runs for up to three months, data from cameras on Iran's nuclear programme will be stored and not handed over to the agency, and if sanctions are not lifted by that time, Tehran will start erasing the recordings.