Schools across the United States were on high alert in response to TikTok and Snapchat posts warning of shooting and bomb threats nationwide.

School districts across the state warned parents and staff of the viral TikTok challenges - many sending letters home ensuring student and staff safety with enhanced security.

Schools say that they increased their security response as a precautionary measure. There's no direct threat to any specific school in New Jersey, or anywhere else.

According to the "K-12 School Shooting Database," there have been over 200 firearm-related incidents at schools nationwide this year, more than in any other year since they started being recorded in 1970.

Police say the threats are not considered credible.