The Rossiyskaya Gazeta, the official government newspaper, published the presidential decree today, listing an array of measures tightening security in the Olympic host city, including the ban on public assemblies.
All "gatherings, rallies, demonstrations, marches and pickets" that are not part of the Olympics or the Paralympics will be prohibited in Sochi from January 7 to March 21, the decree said.
The Winter Olympics is taking place in the Black Sea resort from February 7-23 and the Paralympics are being held March 7-16.
Among other measures in the decree were restrictions on vehicles entering Sochi. Only cars with local license plates, emergency vehicles and those accredited by the Olympic organisers will be allowed to enter the host city between January 7 and March 21.
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Rights organisations have earlier voiced concerns about what they described as the "harassment and intimidation of civil society" advocates in Sochi. Human Rights Watch said in a statement that environmental, human rights and other activists have been "the targets of attacks, detention for peaceful protests and police searches."
Gay activist Nikolai Alexeyev told The Associated Press today that he would petition the Supreme Court next week to contest the presidential decree banning rallies in Sochi as "violating our right of freedom of assembly."
Russian authorities have repeatedly denied gay activists' applications to set up a Pride House in Sochi during the Games but Alexeyev said he would apply for permission to hold a gay pride rally in Sochi on the opening day of the Games anyway.