Çavuşoğlu in a phone talk with his Iranian counterpart Mohammad Javad Zarif slammed the unfounded statements about Turkey and Turkish President Recep Tayyip Erdoğan, said the sources, who asked not to be named due to restrictions on speaking to the media.
The sources said that during the conversation, the attitude of the Iranian side over the poem was discussed, noting that Çavuşoğlu said the poem Erdoğan read in his speech in Baku was about Karabakh and that the president during his speech did not mention Iran, not even implicitly.
While channels were open to convey views on the issue to Turkey, the baseless and heavy statements of Iran that targeted the Turkish president were "unacceptable", Çavuşoğlu stressed, according to the sources.
Reminding Turkey’s support for the country during the most difficult periods when everyone turned their back on Iran, he said that forgetting this fact increased the disappointment over Iran’s baseless statements.
Earlier on Dec. 11, Iran summoned Turkey's ambassador to the country over a poem Erdoğan read out during a ceremony in Azerbaijan.
Ambassador Derya Örs was summoned by Iran's deputy foreign minister to be told Tehran's "harsh condemnation", Foreign Ministry spokesman Saeed Khatibzadeh said in a written statement.
Örs was also told that Iran urgently expects an explanation, the statement added.
Turkey on Friday summoned the Iranian ambassador over unfounded allegations made about the Turkish president.
On Twitter, Iranian Foreign Minister Mohammad Javad Zarif claimed that the poem Erdoğan read out targeted Iran's territorial integrity.
On Thursday, Erdoğan attended a victory parade in Azerbaijan's capital Baku to mark the country's recent military success in liberating Nagorno-Karabakh and adjacent regions from nearly 30 years of Armenian occupation.
Turkey on Dec. 12 rebuked Tehran for "offensive language" aimed at President Recep Tayyip Erdoğan in connection with a controversial poem that might suggest Iran's northwestern provinces belong to Azerbaijan.