Mary Reinholz A firetruck involved in cleanup.

A skateboarder was struck and killed in Union Square this morning, the police said.

The incident occurred shortly before 11:15 a.m. near Union Square West and East 17th Street, where police said a 24-year-old man fell off the skateboard he was riding and was struck by a box truck that was also traveling southbound. The victim was pronounced dead on arrival at Beth Israel Hospital.

Mary Reinholz

The driver of the vehicle, a 2004 Mitsubishi box truck, remained at the scene. No criminality is suspected, but the investigation is ongoing, the police said.

A fireman on the scene said the skater “bled out” on the street. A large stain on the road had been wiped clean by this afternoon. Around 3 p.m., pedestrians seemed oblivious to the earlier tragedy; a young, bearded skateboarder was seen gliding gracefully toward Broadway and East 17th Street.

Mary Reinholz contributed reporting.

Update | Nov. 26, 2012, 10:50 a.m. The victim was not 24, as the police initially reported; he has since been identified as a 20-year-old N.Y.U. student, Kyle Larson.