Rogozin announced the postponement of the rocket launch from the Baikonur cosmodrome

"At Baikonur, the launch of the ILV has been postponed for a day at the request of a foreign customer due to the unavailability of its ground-based measuring instruments," Rogozin said in his Telegram channel.

As reported by TASS, we are talking about the Soyuz-2.1b rocket, the launch was postponed to August 22. 

Earlier it was reported that the launch of Soyuz-2.1b with 34 OneWeb spacecraft was scheduled for August 20.

After that, the launch of the rocket was postponed to August 21.