boeing_737-300-CHARLESTON - A Southwest Airlines plane with 131 people on board made an emergency landing in Charleston, West Virginia Monday after a hole appeared in the fuselage.

No one was injured in the incident on the flight from Nashville to Baltimore, a spokeswoman for the airline told CNN.

It is not yet known what caused the football-sized hole in the middle of the cabin.

The sudden appearance of the hole caused the plane to depressurize, forcing the 126 passengers and five crew on board to use oxygen masks.

The passengers were later taken to Baltimore on another plane.

The authorities have begun investigating the incident and the airline’s fleet of Boeing 737-300s will be inspected.

Marilee Mclnniss, spokeswoman for the airline said that this hole had opened up around 30 minutes into the flight and that she has never seen this kind of a thing happen before in the history of the airline. She also added that they, “are working diligently to find out what happened”. This is a strange incident and this fact is corroborated by the spokesperson for the Federal Aviation Administration as he said that, “It’s pretty uncommon for the skin of an airplane to get a hole in it and peel back like that.”