UFA, October 8 - RAPSI. The Bashkortostan Prosecutor's Office asked 20 regional Internet providers to block access to the film "Innocence of Muslims" declared extremist, Senior Assistant Prosecutor Guzel Musatova told RIA Novosti.

The office will ensure the execution of its directives, she added.

The Tverskoy District Court in Moscow earlier declared the film to be extremist.

Last Friday, a similar ruling was handed down by the Leninsky District Court in Grozny.

Mass protests have broken out over the film in Egypt, Libya, Tunisia, and Sudan, as well as in other predominantly Muslim countries.

U.S. Ambassador to Libya Christopher Stevens and three colleagues were killed when rioters attacked the U.S. Consulate in Benghazi on September 11. The riots seemingly began as a result of the film.

The film's 14-minute U.S.-made trailer portrays Islam and the Prophet Muhammad in a negative light.

A number of countries have already banned the film from screening and distribution.

The United States is strengthening the security of its diplomatic staff in countries where they could be subject to attack, while a number of nations have blocked access to the film.

Meanwhile, Google has only honored requests to remove clips of the film from its video-hosting services in certain countries based on government requests.