EAST RUTHERFORD — A fan was seriously injured in a fall during Sunday's Giants game at MetLife Stadium.

MetLife Stadium ( Jeff Zelevansky/Getty Images)

State Police spokesman Sgt. Jeff Flynn told NorthJersey.com a man fell 15 feet from a switchback ramp and was taken to Hackensack University Medical Center in serious condition.

A switchback ramp is the name given to describe ramps that zigzag back-and-forth instead of going straight up-and-down.

A witness on Twitter said he saw the man fall from the top of the escalator to the concrete below at the stadium's Verizon gate.

Flynn did not disclose the identity of the man who fell. He told CBS New York that the incident does not appear to be suspicious.

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