Beware of those taking to social media to deliberately spread misinformation, hate, fear and division,” the Frisco, Texas, police chief said.

On Wednesday, 17-year-old high school athlete Austin Metcalf was fatally stabbed at a track event at Kuykendall Stadium, in the northern Frisco suburb of Dallas, Texas, according to local authorities. Newsweek contacted the Frisco Police Department for comment via telephone on Thursday outside of regular office hours.

Austin Metcalf, a 17-year-old high school student and footballer, was fatally stabbed in the heart during a track meet in Frisco, Texas. The altercation, which lasted mere seconds, was over a seat. Stabbing perpetrator Karmelo Anthony has been arrested and charged with murder.