A teen boy has been severely injured in a two-story story fall at the Arlington Mill Community Center.

A witness said the teenager had climbed on the other side of a railing two stories off the ground to do “pull-ups showing off for his girlfriend” when he lost his grip and “fell hard on his back.”

He was transported to the trauma center at Inova Fairfax Hospital with life-threatening injuries. Another witness at the scene, who did not see the fall but saw the aftermath, said the teen was conscious but “in shock” after the fall.

Police are investigating the incident. One of the teen’s friends caught the fall on video and accompanied him to the hospital, police told ARLnow.com at the scene.