The migration crisis seems still out of control three weeks after the European Union (EU) signalled its open borders Schengen might be suspended for two years unless the flow of refugees slows down soon.
Russian Foreign Minister Sergei Lavrov on Tuesday blamed Turkey for recent allegations that Russian airstrikes in Syria had caused civilian deaths.
NATO has called on Russia to act responsibly after Turkey summoned Russian ambassador to protest what it claimed a violation of its airspace by a Russian warplane.
The leader of Cypriot biggest opposition party AKEL, Antros Kyprianou, returned on Sunday from talks with the Turkish government saying it was agreed to continue the dialogue to overcome obstacles to a solution of the Cyprus problem.
Turkey detained 23 suspected Islamic State (IS) militants trying to enter Turkey through Syria, according to the Turkish General Staff's released statement Sunday.
The United States and Turkey pledged to cooperate more closely to reach a political solution in Syria while cleaning the region from the Islamic State (IS).
Turkey detained nine members with the Islamic State (IS) militant group, including three Russians, a day following a bomb attack in Istanbul killed 10 people and injured 15 others.
The deadly suicide attack in the heart of Istanbul on Tuesday that killed 11 people has exposed the vulnerability of Turkey to serious security challenges in a turbulent region where terrorism is on the rise.
A suicide bombing attack on Istanbul's historic Sultanahmet Square on Tuesday has left 10 people dead, among them nine German tourists, laying bare a worsening security situation in crises-ridden Turkey.
Turkish Presidential Spokesperson Ibrahim Kalin said on Monday that Russia does not fight the militants of the Islamic State (IS) in Syria and they have made this clear by supporting Syrian President Bashar al-Assad and his regime.
Turkish Prime Minister Ahmet Davutoglu said on Tuesday that Turkey's military training and equipment support for Iraq will continue until Mosul is liberated from the Islamic State (IS) militants.
The tension between Iraq and Turkey over the recent deployment of Turkish troops near Mosul is seen as a reflection of deep regional and international divisions, with the parties concerned vying for a bigger role in shaping the region's future.
Turkey has considered possible measures against Russia and will impose sanctions if necessary, Turkish Prime Minister Ahmet Davutoglu said on Tuesday, but added that Ankara remains open to dialogue with Moscow.
A deal reached Sunday between the European Union and Turkey to stem the flow of refugees, mostly Syrians, to Europe has wider implications, analysts said.
Russia has intensified its air strikes in Syria's northwestern province of Idlib, close to the Turkish borders, as a top Iranian official arrived on Sunday in capital Damascus for meetings with top official, reports said.
The European Union (EU) clinched an agreement with Turkey on late Sunday, offering 3 billion euros (3.18 billion U.S. dollars) in aid and more promising access for Ankara's membership to the bloc, to trade for massive reduction of illegal migrant arrivals.
Relations between Moscow and Ankara would go into a nosedive following the downing of the Russian Su-24 warplane and no rapid recuperation of the relationship is seen on the horizon, Russian experts said.