Saudi Arabia cut ties with Iran in January 2016, after its embassy in Tehran and consulate in second city Mashhad were attacked by protesters.
The UAE Foreign Ministry said the move was in line with efforts to bolster bilateral ties with Iran while also looking at the interests of the wider region.
Riyadh cut ties with Tehran in 2016 after Iranian protesters attacked Saudi diplomatic missions in Iran after the kingdom executed Shia cleric Nimr al Nimr.
Middle Eastern governments have valid reasons to fear foreign conspiracies but deflecting blame on foreign hands instead of addressing citizens' grievances only weakens their own position.
The execution of 37 prisoners in Saudi Arabia is a scathing indictment of Crown Prince Mohammed bin Salman's 'liberalising reforms'.
If history is anything to go by then Saudi Arabia's executions of thirty-seven Saudis, most believed to be Shia, could incite anger in the region and a response from Iran.
HRW urges Saudi authorities to "take immediate steps to allow people to safely return home, allow business and clinics to reopen, and compensate residents for property damage and destruction caused by security forces."
Iranian pilgrims are set to miss out on the annual Hajj pilgrimage this year amid a row with Saudi Arabia.
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