Gardai are warning young people about a dangerous Tik Tok challenge called 'ghosting'.
The trend sees people lying on a road with a sheet placed over them in an attempt to stop oncoming traffic.
Tik Tok ghost challenge is lame af.... Can we start a new trend please?
— victoriamfig (@victoriamfig) December 9, 2020
A young girl in the south of the country was injured while taking part in the challenge.
She received injuries to her back, torso, and ankle and was admitted to hospital for a number of days.
Gardai are reminding people of the importance of being seen on Irish roads.
Martin Guilfoyle, who is one of Ireland's most followed DJ's on Tik Tok, says the challenge was not dangerous when it first started in September.
"The idea was you put a bed sheet over your head and you get a photo taken in public or real quirky places."
"And you post a montage of the pictures."
"I think somebody just decided it would be funny or hilarious to do that lying down in the middle of the road."
"And then get the shots of someone getting out of the car and then scaring them and running away."