MOSCOW, August 8 (RAPSI) - The Federal Antimonopoly Service (FAS) will consider cases against four Russian largest mobile operators over alleged violation of competition legislation on September 26, 28 and 29, the watchdog announced on Tuesday.

The watchdog opened antimonopoly cases against MTS, MegaFon, VimpelCom (Beeline brand) and T2 Mobile (Tele2 brand) in late July.

Earlier, the watchdog announced that actions of MTS, MegaFon, VimpelCom (Beeline brand) and T2 Mobile (Tele2 brand) may have violated the competition law by setting different prices for mobile phone service in customer’s home region and in roaming on the territory of Russia.

The watchdog issued warnings to the mobile operators prompting them to eliminate unreasonable difference in prices within two weeks.