Some people left injured after a powerful explosion rocked a supermarket on Friday in Russia's Vladikavkaz, the capital of the Republic of North Ossetia-Alania. A spokesman for emergency services told Sputnik on Friday, said, "An explosion occurred inside a supermarket on Gagkayeva street." According to the spokesman, the one-story building was destroyed completely. He further said, "It was presumably a gas explosion. There are casualties." Earlier, Six law enforcement officers were wounded in December when a man they were trying to arrest blew himself up near Russia's FSB headquarters in Russia’s North Caucasus region. Officers moved to stop the bomber as he tried to force his way into an area where they were conducting a search operation, the National Counter-terrorism Committee said in a statement. The attack took place in the village of Uchkeken in the Karachay-Cherkessia area. No civilians were hurt and authorities were trying to establish the identity of the assailant. Also Read: Rising violence displaces 400 families in Yemen's Marib in 3 days: Source Microsoft uses Trump, misinformation to justify a US version of Australia's media code Beijing bans BBC news channel in retaliatory move