An ALS Ice Bucket Challenge ended in tragedy as four firefighters were seriously injured in Campbellsville, Kentucky.
Campbellsville Police Chief Tim Hazlette told CNN that electricity from a power line shocked the firefighters, while they were spraying water on the students in a group event.
The local Fire and Rescue Department crew was helping the Campbellsville University band with their video 'challenge', when the incident took place at around around 11 am on Thursday.
The firefighters were moving back the ladder after helping the students with the charity cause, when tragedy struck. The bucket at the top of the ladder came into contact with the power lines, shocking the firefighters.
Captain Tony Grider, 41, and firefighter Simon Quinn, 22, were inside the bucket. They were first taken to the Taylor Regional Hospital and were then transferred to the University of Louisville Medical Center Burn Unit.
"One is in critical condition, the other is fair. Both have been admitted to the hospital's Level 1 burn unit," said KentuckyOne Health spokesperson David McArthur.
Captain Steve Marrs, 37, and firefighter Alex Johnson, 28, also received electric shocks, when they tried to lower the bucket and the current travelled down the ladder.
The Ice Bucket Challenge is a social media campaign, to raise awareness and money to fight Lou Gehrig's disease, also called amyotrophic lateral sclerosis (ALS).
Owing to the popularity of the challenge, the ALS Association has received over $41.8 million in donations, compared to the $2.1 million it received during the same time last year.
The challenge raked up criticism on social media recently, after a report claimed that several people died, participating in the game.
Reports, which later turned out to be false, noted that 34 young people in America, Britain, Ireland and elsewhere lost their lives due to hypothermia, after participating in the ice bucket challenge.