Proton M booster with Briz-M upper stage and two communication satellites of Express-AT series was successfully launched from Baikonur spaceport. Briz-M upper stage that was to set two communication Express-AT satellites into the geostationary transfer orbit separated from Proton-M booster, - Roscosmos representative reported.

Russian space industry specialists go on with preparations for the launch of Proton-M booster with Briz-M upper stage and cluster comprising two Russian telecommunication satellites Express-AT1 and Express-AT2.

Express-AM5 Russian communication satellite developed and designed by Reshetnev “Information satellite systems” Company was delivered to Baikonur spaceport from where it will be launched.