Several people have collapsed in an overcrowded New Jersey train station while waiting in long lines to get to the Super Bowl.

Emergency medical workers pushed their way through the overheated crowd to treat the people at Secaucus Junction on Sunday afternoon.

Long lines have come to a standstill in front of airport-style security machines that apparently cannot handle the crowd volume. People were squeezed together in an enclosed stairwell.

As more trains arrived, police tried to thin the sweating, jostling crowd by spreading people across the platform.

(AP)