Qatar has withdrawn its ambassador from Iran in January 2016, after Saudi Arabia cut ties with Iran, accusing the latter of failing to protect its embassy in Tehran and consulate in Mashhad against demonstrators who had ransacked them.
"The Islamic Republic of Iran's principled and permanent policy has been and will be enhancing relations with all its neighbors", Iran's Foreign Ministry spokesman Bahram Qassemi said after the Qatari announcement.
One of those demands was that Qatar further downgrade ties with Iran.
Despite the Arab nations' indignation, Qatar restored full diplomatic ties with Iran earlier today and vowed to strengthen bilateral relations with the country "in all areas" the tiny emirate had recalled its ambassador from Tehran in 2016 when Saudi diplomatic missions were attacked in Iran after Saudi Arabia executed a Shiite cleric.
Commenting on Qatar's recent statement that it chose to return its ambassador to Tehran and "strengthen ties in all fields" with the Islamic Republic, Iranian political analyst Hassan Hanizadeh explained to Sputnik Iran what this move might actually signify.
But, as the Saudi-led siege threatened to cause shortages of food and vital goods in Qatar, Iran started sending shipments of foodstuffs to the Arab country on humanitarian grounds, as did a number of other countries.
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The ministry called on Qatar to "cease all action which could affect its security" as well as that of countries in the region in order to "safeguard the peace and stability". The decision to return the ambassador comes amid a diplomatic dispute between Qatar and other Arab nations.
The retaliatory move came just 24 hours after the central African state announced it was closing Qatar's embassy in N'Djamena. However, Qatar refused to comply with the demands.
In recent days, however, Saudi Arabia announced that it would allow Qataris to make the annual hajj pilgrimage, which is required of all able-bodied Muslims at least once in their lives.
The ministry also announced that Qatar's Foreign Minister Sheikh Mohammed bin Abdulrahman al-Thani held a telephone conversation with his Iranian counterpart Mohammad Javad Zarif.
But Sheikh Abdullah has no role in Qatar's government and his last position was as head of the equestrian and camel racing federation decades ago.
Information for this article was contributed by Amir Vahdat and Matthew Lee of The Associated Press.