MOSCOW, May 1. /TASS/. Preliminary results of the investigation of the causes of the postponement of the first carrier rocket launch from Russia’s new Vostochny spaceport in the Far East are expected on May 6, a source in the secretariat of Russia’s Deputy Prime Minister Dmitry Rogozin told TASS on Sunday.

"The special commission which is scheduled to meet in Yekaterinburg will analyze the causes of malfunctions at the Vostochny spaceport," he said. "Preliminary results of the investigation are expected on May 6."

The special commission set up by Russian Deputy Prime Minister Dmitry Rogozin to probe into the postponement of the first launch from Russia’ new Vostochny spaceport will arrive in Yekaterinburg to hold a meeting at the Semikhatov research and production association of automatics on May4-5.

The first launch from Russia’s Vostochny new spaceport with the help of the Soyuz-2.1a carrier rocket took place at 05:01 a.m. Moscow time (02:01 GMT) on April 28. However the rocket was launched on the second try. It was initially scheduled to be launched in the small hours on April 27. However ninety seconds before blastoff the launch was aborted.