More from The National:
Wednesday's best photos: from saving a whale to a record-breaking tightrope walk in France
Tuesday's best photos: from Hall of Mirrors fancy dress to Sharon Stone at Cannes
Monday's best photos: from Chelsea Flower Show to AC Milan fans
Sunday's best photos: from a heatwave in Spain to a block party in Brooklyn - in pictures
Saturday's best photos: from purple skies in Germany to a heatwave in India