In one of Russia's worst space failures of recent years, a Proton-M rocket carrying navigation satellites exploded shortly after takeoff on July 2. All scheduled launches were then shelved pending an investigation.
"The first launch will take place when we have carried out all the necessary planned work, provisionally this will be in September," the deputy head of the Russian space agency, Alexander Lopatin told journalists, quoted by the RIA Novosti news agency.
Roscosmos chief Vladimir Popovkin said that the first rocket launch would take up a foreign satellite.
"By the end of the year we will try to carry out four to five Proton launches following the accident," he said, quoted by RIA Novosti.