Moscow-installed authorities urged residents in the southern Kherson region — which the Kremlin claims to have annexed — to leave the main city “immediately” in the face of Kyiv’s advancing counter-offensive. “Due to the tense situation on the front, the increased danger of mass shelling of the city and the threat of terrorist attacks, all civilians must immediately leave the city and cross to the left bank of the Dnipro river,” the region’s Russian-installed authorities said on social media on Saturday. A Moscow-installed official in Kherson, Kirill Stremousov, told the Russian news agency …