MOSCOW: President Dmitry Medvedev on Wednesday fired two top space officials and reprimanded the head of Russia's space agency after the failed launch of three vital communications satellites, the Kremlin said.

Medvedev fired Vyacheslav Filin, vice president of the Energia Rocket and Space Corporation, and Viktor Remishevsky, the deputy head of Russia's Roskosmos space agency, news agencies quoted a Kremlin statement as saying.

The Russian president also reprimanded Roskosmos chief Anatoly Perminov, the statement added.

"On the Russian president's instructions, Roskosmos will undertake additional measures to strengthen its performance discipline," the Kremlin statement said.

A Russian Proton-M rocket failed to reach its initial orbit during the December 5 launch, causing it to dump the three high-tech Glonass-M satellites near the Hawaii Islands.

It marked an embarrassing setback to Russia's much-publicised attempts to introduce a global rival to the US Global Positioning System (GPS), a programme that was first begun by the Soviet Union in 1976.