The story: Reiterating Iran’s opposition to any border changes in the South Caucasus, the secretary of the Iranian Supreme National Security Council (SNSC) has hosted his Armenian counterpart in Tehran.

The meeting comes amid rising tensions between Azerbaijan and Iran. In the most recent escalation between the two neighbors, Baku has expelled four Iranian diplomats—with the Islamic Republic promptly declaring its intention to reciprocate the move.

The coverage: Armen Grigoryan, the secretary of Armenia's Security Council, met Ali Shamkhani in the Iranian capital on Apr. 9.

• Shamkhani told the visiting top Armenian official that Iran opposes "any geographical changes in the Caucasus" because it would only "cause tension."
  
  
• The SNSC secretary was referring to...