Russian authorities seek to curb protests by Alexei Navalny supporters

Alexei Navalny and his wife, Yulia, on the plane prior to their flight to Moscow (Mstyslav Chernov/AP)

Russian authorities have taken elaborate measures to curb protests against the jailing of opposition leader Alexei Navalny which have been planned for Saturday.

Mr Navalny’s associates in Moscow and other regions have been detained in the lead-up to the rallies in more than 60 Russian cities.