TEHRAN - Iran has condemned the recent terrorist attacks in Russia's Dagestan region, expressing condolences to the Russian government and people.

In a statement on Monday, Iranian Foreign Ministry spokesperson Nasser Kanaani offered sympathy to the families of the victims and wished a speedy recovery for those injured in the attacks. 

“The Islamic Republic of Iran considers terrorism of any kind as a threat to human society and international security,” he said.

Kanaani also stressed that the international community needs to show serious determination and make effective efforts to deal with the common threat against human beings.

The attacks, which occurred on Sunday during the Russian Orthodox Church's Pentecost festival, targeted churches, a synagogue, and a police post in the cities of Derbent and Makhachkala. At least 15 police and National Guard officers, several civilians, and an Orthodox priest were killed, with 12 others injured.

The attacks come three months after some 133 people were killed when gunmen opened fire at a rock concert in the Crocus City Hall on the outskirts of Moscow.

Russia has blamed both attacks on Ukraine, saying Kyiv is employing and arming terrorists to wreak insecurity inside Russia. 

The terrorists who carried out the Crocus City Hall attack were arrested near the border with Ukraine, as they were attempting to flee to Russia’s western neighbor.