Spain has opened its airspace to Bolivian president Evo Morales' plane, after it was diverted to Austria amid suspicions Edward Snowden was on board.

Austrian officials said the plane was searched and Mr Snowden, wanted by the US for leaking secrets, was not there.

Bolivia has been enraged by Mr Morales' treatment, and has asked for a crisis meeting of South American leaders.

Mr Snowden is reportedly seeking asylum in Bolivia and several other countries to avoid extradition to the US.