Azerbaijan on Thursday summoned its ambassador in Greece back for consultations.
In a statement, the country's Foreign Ministry said it had shared open-source reports with Athens that Armenian-origin Greek nationals had traveled to the region as foreign fighters to take part in Yerevan's attacks on Azerbaijan.
The statement added that Azerbaijan requested that Greece investigate the issue.
On Oct. 2, Hikmet Hajiyev, the assistant to the president and foreign policy chief for Azerbaijan's presidency, said they obtained information that people of Armenian origin from some Western countries would come to fight against Azerbaijan as foreign fighters and mercenaries.
Relations between the two former Soviet republics have been strained since 1991, when the Armenian military occupied Upper Karabakh, an internationally recognized territory in Azerbaijan.
New clashes erupted on Sept. 27, and since then Armenia has continued attacks on civilians and Azerbaijani forces.
The OSCE Minsk Group -- co-chaired by France, Russia and the US -- was formed in 1992 to find a peaceful solution to the conflict, but to no avail. A cease-fire was agreed to in 1994.
Many world powers, including Russia, France, and the US, have urged a new cease-fire. Turkey, meanwhile, has supported Baku's right to self-defense and demanded a withdrawal of Armenia’s occupying forces.
* Writing by Erdogan Cagatay ZonturAnadolu Agency website contains only a portion of the news stories offered to subscribers in the AA News Broadcasting System (HAS), and in summarized form. Please contact us for subscription options.