German authorities said a man was killed and five others injured when a mechanical digger tipped over and hit them during a so-called Cold Water Challenge, a dare that has been spreading on Facebook.
Prosecutors said on Wednesday 11 members of a bowling club in Isselburg, on the Dutch border, had filled the digger’s shovel with 2000 litres of water, which was to be poured over them.
In the US, several people have been injured participating in Cold Water Challenges, which typically involve dares such as jumping into cold water.