Iran’s President Hassan Rouhani speaks during a joint news conference at the Elysee Palace in Paris, France, January 28, 2016.

Iranian President Hassan Rouhani has postponed for security reasons a planned visit to Austria this week, only his second to Europe since last year’s nuclear deal, Austria’s presidency said Tuesday.

“The visit for March 30-31 by President Hassan Rouhani and his delegation has been postponed by the Iranian side for security reasons,” it said in a statement, without giving further details.

Rouhani had been due to meet Austrian President Heinz Fischer on Wednesday in Vienna and Chancellor Werner Faymann the following day as well as attend an Austro-Iranian economic forum.

He visited Rome and Paris in January.

The 2013 election of Rouhani, a relative moderate, led to something of a rapprochement with the West which in turn helped Iran and major powers reach the mammoth nuclear deal in Vienna last July.

Entering into force in January, Iran substantially scaled down its nuclear programme in order to put an atomic bomb out of reach. In return nuclear-related sanctions — but not others — were lifted.

Ructions with the West remain, however, including over Tehran’s support for Syrian President Bashar al-Assad, the conflict in Yemen, Iran’s ballistic missile programme and computer hacking.

With Rouhani having been elected on a promise to improve the economy, Tehran is also frustrated at what it sees as an incomplete lifting of sanctions, in particular on its banks.

Austria, like other European countries, and having hosted numerous rounds of talks that led to the nuclear deal, is keen to see its firms profit from the opening up of the Iranian economy.

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