Toward the end of 2014 , the Caucasus Emirate became more active in their insurgent activities . On 5 October 2014 , a suicide bombing took place near the city hall of Grozny . Five Russian police officers and the suicide bomber were killed . Another 12 people were wounded . Byutukayev also took responsibility for the 2014 Grozny clashes , during which 14 Russian policemen were killed and a total of 35 people wounded
suicide bombing
2014 Grozny bombing
Aslan Byutukayev