IS group detainees killed after taking hostages in Russian prison, say authorities
                        
                                                    
                                
                                
                                
                                
                                
                                    Russian authorities said Sunday that they had brought a siege at a prison in the southern Rostov region to a swift end, killing the Islamic State hostage-takers and freeing their two prison guard captives unharmed.                                
                            
                        
                        
                                                    
                        
                        
    
    
        
            
            
        
        
    
                        
                            Russian authorities said Sunday that they had brought a siege at a prison in the southern Rostov region to a swift end, killing the Islamic State hostage-takers and freeing their two prison guard captives unharmed.