School officials are warning parents about a potentially dangerous TikTok trend that could harm students and their school-issued Chromebooks.

A concerning trend filling classrooms with toxic smoke is gaining traction on TikTok, and it’s led to the evacuations of some schools in Connecticut.

A new challenge involves students in schools sticking paper clips in Chromebook computer, which as caused fires in several Connecticut schools, according to news reports. With concern of the trend spreading, now school officials in other states are asking students to please not put paperclips in their laptops.