President Vladimir Putin said on Friday that certain "ill-wishers" were stepping up efforts to destabilise Russia and urged members of his cabinet not to allow this "under any circumstances".
He said Russia's Security Council would discuss ensuring security in the context of what he said were "extremely important" issues concerning relations between the vast country's 190 ethnic groups.
"Today, we will also be addressing these issues in terms of ensuring Russia's security, in this case domestic political security," he said.
Since sending tens of thousands of troops into Ukraine in February 2022, Russia has intensified its crackdown on dissenting voices and pushed the remainder of its beleaguered liberal opposition abroad.
Putin has repeatedly called on Russia to unite in the face of "existential threats" from the West, but has occasionally faced animosity from ethnic groups who feel particularly targeted by Moscow's mobilisation drive.
In March, Moscow outlawed the Free Nations of Post-Russia Forum, an organisation founded by opposition activists that advocates independence for Russia's multiple ethnic groups.
At least 5 were killed and 35 others injured when a bomber detonated an explosive inside a mosque in Maiduguri, the capital of Nigeria's Borno state, during evening prayers, police said.
A helicopter has crashed on Tanzania's Mount Kilimanjaro, killing five people, the civil aviation authority said on Thursday, while local media reported that the aircraft was on a medical rescue mission.
Fourteen countries including Britain, Canada, and Germany have condemned the Israeli security cabinet's approval of 19 new settlements in the occupied West Bank on Wednesday, saying they violated international law and risked fuelling instability.
The US Justice Department has found more than a million more documents potentially tied to convicted American financier Jeffrey Epstein, delaying a full release for weeks while officials redact details to protect victims, the Department of Justice said on Wednesday.