Araqchi made the remarks in a ceremony marking the National Day of Azerbaijan at the premises of the Central Asian country's embassy in Tehran Monday evening.
"Tehran-Baku relations are not only friendly, but also brotherly," the Iranian deputy foreign minister said.
He pointed to the religious, cultural and historical commonalities of Iran and Azerbaijan, and said, "The Islamic Republic of Iran is one of the first countries that recognized the independence of the Republic of Azerbaijan and it has always wanted progress of that country.
Araqchi pointed to the two countries' influential role in regional developments, and said, "The two countries' leaders are determined to expand the bilateral relations and if any difference of opinion arises in these relations, it will be removed due to the very same determination."
Speaking at the same ceremony, Azeri Ambassador to Tehran Javanshir Akhoundov said that his country prioritizes expansion of bilateral ties with Iran, and added, "The two countries' relations are perpetual and impeccable."