Alexander Bocan- Harchenko, the Russian ambassador to Serbia, meets President Aleksandar Vucic early on Thursday, amid a case involving a Moscow's spy and allegedly a local agent, N1 reported.
Bocan - Harchenko's media service told N1 that the meeting was planned a few weeks ago and that his tight scheduled disable him to give a statement after the talks.
The meeting comes a day after Serbia's civilian secret service (BIA) verified that a man seen in a video with another man whom he handed a plastic bag with an envelope containing money was a Russian intelligence officer.
BIA did not comment on the assumption that the other man was Serbia's secret agent or a state official.
Vucic called a meeting of the National Security Council for Thursday.
In the meantime, Serbia's Interior Minister Nebojsa Stefanovic is on a two-day visit to Moscow where he signed two agreements regarding security issues with Russian officials.