Earlier, Iranian Foreign Minister Mohammad Javad Zarif arrived in this northern city to attend the ministerial meeting.
Turkish foreign minister is due to be in Ramsar today for the Tehran-Baku-Ankara ministerial meeting.
The trilateral meeting plans to review joint issues between the three courtiers.
The meeting is considered as an important step towards trilateral cooperation in fight against international terrorism as well as development of transportation and trade exchange.
Foreign ministers of the three countries held their first trilateral meeting in Orumiyeh, Iran, in 2011. They held their second and third meetings in 2012 and 2014 in Nakhchivan and Van in Azerbaijan and Turkey respectively, IRNA reported.
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