<span style="color: #222222;">Russian authorities have closed metro stations and are restricting movement in Moscow ahead of planned rallies in support of jailed opposition leader Alexei Navalny. Many restaurants and shops in the city centre will be closed and overground transport will be diverted. More than 4,000 people were arrested across Russia during rallies last week.<br />''<br />''Mr Navalny was jailed on his return to Russia after recovering from an attempt to kill him with a nerve agent. Mass rallies in support of Mr Navalny are expected across Russia TODAY Sunday, despite fresh police warnings about gatherings.</span>