From Tucson, Ariz.: Safety concerns have been raised at schools due to a viral social media trend. A warning was issued by a school district to parents about this trend. It features a character from a popular children's book in a sinister way, accompanied by threatening language.

The trend is said to involve altered images and videos, and has been circulating in communities. Officials have noted that it has sparked concerns about safety at schools.

Further details about the trend and the warning issued by the school district are available from the source.