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.
US President Donald Trump on Sunday called on Ukrainian President Volodymyr Zelenskiy to stop targeting Russian diesel infrastructure, saying the attacks were causing a shortage of the fuel that is "hurting the world".
Indonesian rescuers were searching on Sunday for 130 people from a passenger ship that sank in the Java Sea after 113 others were evacuated, the country's search and rescue agency said, adding that six people had died.
At least five people were wounded in a Russian attack on the Ukrainian city of Odesa on Sunday morning, officials said, a day after strikes on the city killed two people.
Authorities in the Philippines said on Sunday it could take weeks or months to identify the victims of a ferry fire that killed 76 people, as forensic experts begin collecting and comparing DNA samples and investigators determine the cause.
UAE President His Highness Sheikh Mohamed bin Zayed Al Nahyan welcomed King Abdullah II bin Al Hussein of Jordan upon his arrival in Abu Dhabi on Sunday.
His Highness Sheikh Hamdan bin Mohammed bin Rashid Al Maktoum, Crown Prince of Dubai and Deputy Prime Minister, has approved an official of the rank of Director-General as the first recipient of the Mohammed bin Rashid Leadership Medal.
Dr Anwar Gargash, diplomatic advisor to the UAE president, on Sunday said the meeting between Abu Dhabi Crown Prince His Highness Sheikh Khaled bin Mohamed bin Zayed Al Nahyan and Iranian President Dr Masoud Pezeshkian reflects the UAE's stance of "deterrence and diplomacy".