Russia on Friday paraded combat drones that its forces use in the war in Ukraine on Moscow's Red Square in what state TV said was a first.

Ukrainian drone strikes have heightened anxiety across Moscow ahead of this year’s May 9 parade on Red Square, where President Vladimir Putin will be watching with other leaders.

Attacks by Ukrainian long-range drones caused flight disruption at Moscow’s main airports for a third straight day on Wednesday as Russia prepared to receive the Chinese president and other foreign leaders for the annual Victory Day military parade in Red Square.