MOSCOW—Police detained more than 200 people in Russia’s Far East and Siberia on Saturday as protesters defying bitter cold and a ban by authorities staged nationwide rallies to demand the release of jailed Kremlin critic Alexei Navalny. Navalny called on his supporters to protest after being arrested last weekend when he returned to Moscow for the first time since being poisoned in August with a military-grade nerve agent. Navalny had been treated in Germany. Video footage from Vladivostok showed riot police chasing a group of protesters down the street, while demonstrators in Khabarovsk, braving temperatures of around -14 Celsius (7 degrees Fahrenheit), chanted “Shame!” and “Bandits!” Police in the Siberian city of Yakutsk, one of the coldest cities in the world and where the temperature was -52 Celsius on Saturday, grabbed a protester by his arms and legs and dragged him into a van, video footage from the scene showed. …