Agency: Suicide bomber kills four police officers in Russia's Chechnya
By REUTERS
MOSCOW - Four police officers were killed and four more were wounded on Sunday when a suicide bomber detonated explosives ahead of celebrations for a local holiday in Russia's volatile region of Chechnya, state news agency RIA cited local police as saying.There were no immediate reports of civilian deaths or injuries, RIA said.Uncrewed aerial system launched from Yemen's Houthi area