More than a thousand militants were sent to Nagorno Karabakh from Syria on Friday, a source told RIA Novosti.
"We are going to send another batch in the coming days", it added. Earlier, Syrian leader Bashar al-Assad said that Turkey uses terrorists from Syria and other countries in the region to help Baku. Ankara categorically denies such statements.
The head of Russia's foreign intelligence service Sergei Naryshkin also said that mercenaries of international terrorist organizations fighting in the Middle East were being transferred to the conflict zone. Moreover, now we are not talking about hundreds, but thousands of radicals.
The situation is aggravated by the support of NATO member Turkey to Azerbaijan. Armenia, in turn, is a CSTO member.
On October 9, Armenian-Azerbaijani talks took place in Moscow, the parties agreed on a ceasefire, as well as the exchange of bodies, prisoners, captives and bodies, but the fighting continued.
On the night of October 18, a second attempt was made to organize a humanitarian ceasefire, but it did not lead to a lasting de-escalation as well.