A senior Turkish diplomat will visit Switzerland and the USA to seek support for Ankara's position on the Armenian Constitutional Court ruling.
Ankara believes the court ruling threatens the historic reconciliation protocols signed with Yerevan, a Foreign Ministry spokesman said on Wednesday.
Feridun Sinirlioglu, undersecretary at the ministry, is to leave for Switzerland on 4 February. He will meet the Swiss deputy foreign minister, Michael Ambuehl, to express Turkey's concern at the ruling last month by the Armenian Constitutional Court. Turkish diplomats are also to visit Russia and France.
After months of Swiss-mediation and US encouragement, Turkey and Armenia signed two protocols in October to establish diplomatic ties and reopen their shared border, in a historic step toward ending decades of hostility stemming from World War I-era killings of Armenians in the Ottoman Empire.
But the process hit the rocks after the Armenian court upheld the legality of the protocols, but underlined that they could not contradict Yerevan's official position that the Armenian mass killings constituted genocide — a label fiercely rejected by Ankara.
Turkey accused Armenia of trying to doctor the deals, while Yerevan warned that the rapprochement was under threat of collapse.
Turkish Foreign Ministry spokesman Burak Ozugergin said Ankara maintained its desire to build better ties with its eastern neighbour.
"There is no problem in Turkey's Armenian opening. But Armenia has a problem with its Turkey opening," he said.
The reconciliation process is also complicated by Ankara's insistence that normalizing Turkish-Armenian ties depends on progress between Armenia and Azerbaijan over the Nagorno-Karabakh dispute — a link that Yerevan rejects.
Turkey closed its border with Armenia in 1993 in solidarity with Azerbaijan after ethnic Armenian forces wrested Nagorno-Karabakh from Baku's control in a war that claimed an estimated 30,000 lives.