MOSCOW, July 28. /TASS/. The Kiev regime’s attack on the Iranian ship in the Caspian Sea constitutes an act of aggression that reveals its plans to expand the geography of terror attacks, Russian Foreign Ministry Spokeswoman Maria Zakharova said.

"The Kiev regime’s attack on the Iranian commercial vessel that was heading from Astrakhan with civilian cargoes constitutes an act of aggression that infringes upon the norms of international law. Such criminal acts expose the Kiev regime’s unquestionable desire to expand the geographical scope of its terrorist activities," she said.

"This yet another attack on civilian vessels in the Caspian Sea indicates that a clear threat to the regional security of the Caspian littoral states is emerging," she added.

The Russian diplomat stressed that the Caspian Sea should be free from any military incidents and remain a zone of peace, good neighborliness and cooperation.

The Iranian foreign ministry said on July 25 that Ukraine had struck an Iranian merchant ship in Russia’s territorial waters in the Caspian Sea, killing one crew member.