(ANSA-AP) - BERLIN, AUGUST 10 - A lightning strike in southern Germany has injured 15 soccer players, while thousands were asked to leave a concert early and a circus tent collapsed as storms hit across northern Europe. German news agency dpa reported Saturday that the lightning struck the field in Rosenfeld-Heiligenzimmern where the players were exercising. They were injured only slightly but were taken to the hospital as a precaution. In Bavaria, thousands of music fans were asked by police to leave an open-air concert in Rothenburg early due to the weather, while gusty winds led to the collapse of a circus tent in Neckarsulm. One horse had to be euthanized, while 15 other horses and camels ran away and had to be caught by police. Severe weather warnings have already led to the cancellation of a number of outdoor events in Britain this weekend. (ANSA-AP).