Due to a failure in the engine start control system

Russia on Wednesday cancelled Launch of a high-profile rocket, the flagship Angara A5 two minutes before lift-off.

The rocket is a powerful spacecraft designed to carry heavy payloads into low Earth orbit, the head of Russia's Roscosmos space agency said, saying he suspected a failure in the engine start control system most likely a software error. The mission had already been delayed by 24 hours after a planned launch on Tuesday.