This website has a video with macabre footage of 323 reindeer that died from a single lightning strike.
From Google Translate:
It was Friday night that the mass death of reindeer was discovered in caribou range in Vinje municipality between Møsvatn and Kalhovd Hardangervidda.
It was a lightning strike in connection with a violent thunderstorm that seems to have taken the lives of animals, says Knut Nylend by the Norwegian Nature Inspectorate (SNO) in Finnabu operations center told VG.
