The measures were introduced in connection with the terrorist attack at the Crocus City Hall concert hall in the Moscow region.
“In Moscow and the Moscow region, in all regions of the country, additional anti-terrorism and anti-sabotage measures have been introduced,” he noted.
Putin also, commenting on the attack on Crocus City Hall, said that the terrorists would face retribution and oblivion.
In Russia, March 24 has been declared a day of mourning in connection with the terrorist attack in Crocus.
On the evening of March 22, a shooting and fire occurred in Crocus City Hall before the concert of the Picnic group.
The number of victims of the attack, according to the latest data, is 115.