An official source at the Yemeni Presidency in Aden on Sunday said an agreement signed between aviation authorities of Yemen and Iran is not obligatory to Yemen.
The agreement was signed by people who do not have legal or constitutional legitimacy, the source added in a statement.
This agreement is part of Iranian support for the Houthi militants who overturned on the constitutional legitimacy in the Arab country, the source added.
The source called on the Iranian authorities to respect the sovereignty and the constitutional legitimacy of Yemen and stop interference in its internal affairs.