DENVER — Police are investigating after several Denver Public Schools received threatening messages Friday.
Denver Center for 21st Century Learning, South High School, Northfield High School, and East High School all received identical threatening messages through Safe2Tell, according to Robert Grossaint, the interim chief for Denver Public Schools' Department of Climate and Safety.
District safety officers along with officers from the Denver Police Department went to each school and conducted rapid sweeps both inside and outside of these four campuses and found no threats to those schools, Grossaint added.
None of the schools were placed on lockdowns, he said. A police department spokesperson said the "the threat appears to be unfounded."
"We have increased the security presence at each of the schools for the remainder of the day and will evaluate the need for the increased presence next week," Grossaint wrote in a letter sent to parents, teachers and staff.
READ MORE: The cost of 'swatting' threats to our schools, law enforcement and communities
Friday's reports of swatting come in the wake of hoax threats to at least 14 Colorado schools on Wednesday.
Swatting is the act of calling first responders with a fake emergency to coax them into sending a large police presence to a specific address.
