Russian police and security forces in the Dagestan region busted a criminal ring suspected of having ties with Daesh terrorist group, the National Anti-Terrorism Committee (NAC) said Sunday.

Axar.az reports that, the Committee said the Islamist cell was made up of four members and plotted attacks on authorities and law enforcement agencies in Dagestan.

"An NAC Staff-backed operation by FSB [Federal Security Service] and the Interior Ministry forces in the Republic of Dagestan disrupted activities of a clandestine criminal cell linked to the international terrorist organization, Daesh," a NAC statement read.

"According to data at our disposal, all of them were part of a so-called IS sleeper cell and took part in attacks on local residents," the NAC statement read.

One suspected Islamist was tracked down to a private home in the city of Derbent after police were tipped off about his whereabouts. He was killed in a shootout with police, while the remaining three members were detained at other locations.

Dagestan is a hotbed of Islamist insurgency in the North Caucasus. Multiple violent attacks have plagued the region over the past decade.