Russian security forces stormed a detention center in southern Russia, ending a hostage standoff, Russian state news agency RIA Novosti reported Sunday.
The hostages at the facility in Rostov-on-Don were uninjured, said RIA Novosti, citing Russia’s Federal Penitentiary Service.
It said that the hostage takers had been “liquidated,” with other local news outlets reporting that at least some of the prisoners had been killed.
State media said that some of the men were accused of affiliation with the ISIS militant group, which claimed responsibility for a deadly attack on a Moscow concert hall in March.
Before special forces stormed the detention center, one of the hostage takers was shown by the 112 Telegram channel brandishing a knife beside one of the bound guards.