An official from Dagestan was arrested. His sons are said to have participated in the armed attack

Magomed Umarov, head of Sergokalinsky district of Dagestan, was arrested. Two of his sons, Adil and Osman, are said to have participated in the attacks on churches and synagogues in Makhachkala and Derbent, where both were shot dead. This was reported by RBK.

"Kata Umarov is being interrogated by the Federal Security Service (FSS)," the report said.

According to the Mash Telegram channel, the car sent to pick up Umarov was shot in the village of Sergokala.

Earlier, Umarov wanted to resign voluntarily.

According to the latest information, at least 9 people were killed and 25 injured as a result of the armed attack. An anti-terrorist operation regime has been introduced in Dagestan: entrance and exit roads to Makhachkala and Derbent are blocked, police are checking cars. You can see the movement of military equipment on the streets. The sounds of gunfire are incessant.