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.

A GoFundMe page has been set up by supporters of Karmelo Anthony, the teenager charged with murder in the stabbing death of Austin Metcalf, 17, in Frisco, Texas, this week. Metcalf and Anthony had an altercation at a track meet on Wednesday. The victim was at the event with his twin brother.