A SkyWest flight made an emergency landing Tuesday.

Initial reports indicated that an air pressure issue caused by an open door caused one passenger to lose consciousness, according to CNN. That passenger received medical attention and has been released. SkyWest has since released a statement, per NBC Connecticut:

Flight 5622 was diverted to Buffalo, New York and landed safely just before noon. The flight took off from O’Hare airport in Chicago around 10amET. The original destination of the flight was Bradley International Airport outside of Hartford, Connecticut.

The plane descended 28,000 feet in three minutes, according to CNN.

This is a developing story, please return for updates.