On Saturday, Dmytro Kuleba, the foreign minister of Ukraine, made a statement regarding the circumstances surrounding Yevgeny Prigozhin's mutiny, asserting that any issues in Russia are in line with Ukrainian interests.

"There is an uprising in Russia led by Prigozhin and his military 'Wagners.' Any problem behind enemy lines is in our interests. But it is very early to predict the consequences," Kuleba was quoted as saying by Suspilne, a Ukrainian broadcaster.

Earlier on Saturday, Prigozhin received support from the head of Ukrainian military intelligence, Kyrylo Budanov, who claimed that Prigozhin "often tells the truth" regarding the state of the Russian army.

Due to comments made on behalf of Yevgeny Prigozhin, the leader of PMC Wagner, the Russian Federal Security Service (FSB) started a criminal case on Friday for encouraging an armed mutiny. According to the FSB, there was a risk of an escalation on Russian soil. Social media allegations of suspected Russian military strikes on PMC Wagner camps, according to the Russian Defense Ministry, were untrue.

In a nationally broadcast speech on Saturday, Russian President Vladimir Putin called the PMC Wagner's activities an act of armed mutiny and treason and pledged to take tough action against the rebels.

Read next: Putin informs counterparts on current situation in Russia: Kremlin

Security measures boosted in Moscow: Mayor

In a related context, Moscow is witnessing anti-terrorist measures aimed at strengthening security and additional control has been introduced on the city roads, Mayor Sergey Sobyanin said. 

"In connection with the received information, anti-terrorist measures are being taken in Moscow aimed at strengthening security. Additional control on the roads has been introduced. The holding of mass public events could be restricted. Please be considerate of the measures taken," Sobyanin added on Telegram on Saturday morning.

Both security and anti-terrorism measures have also been introduced in the Moscow Region, regional Governor Andrey Vorobyov said on Telegram on Saturday, adding that road checks were added to the southern direction. 

Rostov regional Governor Vasily Golubev called on residents to avoid traveling to the center of Rostov-on-Don and to stay home if possible. Additionally, security measures have also been strengthened in Russia’s Lipetsk Region and residents have been asked to refrain from traveling in the southern direction.