MOSCOW, April 28 - RAPSI. The Federal Antimonopoly Service has opened a case against the Federal Customs Service, which has exempted iPad tablet computers from paying customs duty, while other tablet computers with built-in GPS modules are charged 5%, the antimonopoly service reported.

The antimonopoly watchdog suspects the customs service of violating competition law and establishing preferential conditions for iPad computers, produced by Apple," the report states.

The antimonopoly watchdog also reported that the customs service rejected a proposal to extend the zero customs duties for all tablet computer manufacturers.