Putin chief opponent detained at protest

Police in Russia have detained president Vladimir Putin’s chief opponent after he broke the terms of his house arrest to attend a protest of several thousand people outside the Kremlin.
The unsanctioned rally in Moscow came hours after anti-corruption campaigner Alexei Navalny was found guilty of fraud and given a suspended sentence of three and a half years. His brother was sent to prison. The convictions are widely seen as part of a political vendetta against any opposition to Putin and his government.