NEW YORK ( CNN ) -- A pedestrian was struck twice by vehicles in Queens and dragged for 17 miles by the second vehicle before police found him dead in Brooklyn , New York City Police Commissioner Ray Kelly told reporters Wednesday . Surveillance video shows a body in the middle of the street . The badly mangled body was discovered under a van after several passing motorists motioned the driver to pull over , Kelly said . Police had not identified the victim Wednesday evening , he said . The first driver called 911 to report he thought he had struck a pedestrian but did not see anyone . It turned out the second driver , in a van , had driven over the man , whose body became lodged under its chassis , according to police . Kelly said the van driver stopped at one point during the drive on New York City 's highways and roads because he noticed the vehicle was not driving properly . But he failed to find anything unusual , Kelly said . Police are retracing the route the van drove in an attempt to find body parts , he said . No charges have been filed , Kelly told reporters Wednesday afternoon .
Pedestrian struck twice , dragged 17 miles by second vehicle , New York police say . Man struck in Queens , van stopped in Brooklyn , police say . Body was lodged under van 's chassis , according to police . Police retrace van 's route , seeking body parts .