Tent being lifted from the ground by strong winds
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Storm sends tents flying at Swiss gymnastics tournament

21 June 2013 Last updated at 11:04 BST

A gymnastics tournament in central Switzerland has been seriously affected by a storm involving 80 mph (130 kilometre per hour) winds, heavy rain and 2cm-wide hailstones.

Reports suggest at least six spectators at the Swiss Federal Gymnastic Tournament in Biel were injured when a tree was damaged, and display tents blew away in the gusts.

Elsewhere, parts of Geneva Airport were flooded, while train and plane schedules were affected.