The Russian president heard reports from military leaders in a command post in Rostov-on-Don

President Vladimir Putin paid an announced visit to a command-and-control center in southern Russia in charge of military operations in Ukraine, the Kremlin Press Service said on Sunday, as cited by the media.

During his trip to the command post in Rostov-on-Don, Putin "heard reports from the chief of the Russian General Staff [Valery] Gerasimov and a number of military leaders," the Kremlin said.

In a video of the visit shared by local media, the Russian president told Gerasimov while entering the CP that he has "as much time as necessary" to hear military reports.

The high-level meeting comes on the heels of Putin's surprise visits to Crimea and the city of Mariupol in the Donetsk People's Republic, which was liberated by Russian forces last spring after weeks of heavy fighting.

During the trip to Crimea on Saturday, the ninth anniversary of the peninsula's reunification with Russia, Putin surveyed the construction of a major historical-archaeological park.

In Mariupol, the president visited several districts to inspect the progress of restoration efforts, including the construction of residential and public infrastructure facilities, according to Russian Deputy Prime Minister Marat Khusnullin.

Last autumn, the Donetsk People's Republic, along with three other former Ukrainian regions, voted overwhelmingly in favor of joining Russia in public referendums, following in the footsteps of Crimea, which voted to join Russia in 2014 after the Western-backed coup in Kiev.