An Iranian diplomatic plane suddenly departed from Iranian capital Tehran for Belarusian capital Minsk and then to Russian capital Moscow, the Sepah Pasdaran account on Telegram reported Tuesday.

"Only the highest-ranking officials of the [Iranian] government travel on such flights. According to information received, the Secretary of the Supreme National Security Council [of Iran], Ali Larijani, left for Minsk on an urgent visit. The reason for this mission is the possible war between Iran and the Zionist regime [i.e. Israel]," Sepah Pasdaran added.