The satellites successfully reached orbit Saturday, Roscosmos said.
The Russian Proton-M launch vehicle carrying Yamal-300K telecoms satellite and Luch 5B relay satellite was launched from the Baikonur space center in Kazakhstan Saturday, RIA Novosti reported.
"The separation of the Yamal-300K from the Briz-M booster went smoothly, and to schedule," a Roscosmos spokesman told RIA Novosti, adding that the same was true of the Luch 5B relay satellite.
The satellites, built by Russia's Reshetnev space company, will be operated by Gazprom Space Systems, a telecommunications arm of Russia's energy giant Gazprom.
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