Russian police detained Yulia Navalnaya, the wife of jailed Kremlin critic Alexei Navalny, at a protest in Moscow on Saturday as demonstrations in support of the opposition leader swept across Russia. Authorities detained at least 1,600 people at unauthorised rallies in Moscow and dozens of cities across the country, with some reports of violent clashes between protesters and riot police. At least 10,000 people joined protests in Moscow, according to estimates, in a test to Vladimir Putin. Protests began in Russia’s Far East and Siberia on Saturday morning. Seven time zones east of Moscow, about 3,000 people marched across the city of Vladivostok on the Pacific Ocean, chanting “Navalny!” In Novosibirsk, chants “Putin is a thief” rang out in freezing minus 19 C temperatures as opposition supporters walked across the city to the main square.