Sir Richard Branson has lost out in another key transport battle.

A WEBSITE affiliated with Chechen rebels has released a video in which insurgent leader Doku Umarov claims responsibility for last month’s deadly suicide bombing at Russia’s largest airport and threatens more bloodshed if Russia does not leave the region.

PRESIDENT Dmitry Medvedev fired Moscow’s transport police chief yesterday and lashed out at “passive” officers who guard airports and rail stations after an airport suicide bombing killed 35 people.