Pierre Verdy/AFP
A passenger aboard SkyWest Flight 5622, from Chicago to Hartford, lost consciousness when the cabin lost pressure due to an issue with the aircraft's door, according to reports. The plane landed in Buffalo.
The Embraer 175 twin-jet took off from O'Hare International Airport just after 9:30 a.m. and landed at Buffalo Niagara International Airport about two hours later, shortly after declaring the emergency, according to FlightRadar24.
The unconscious passenger received medical attention shortly after landing in Buffalo, according to CNN.
A total of 75 people were aboard the flight, according to WTIC. Only the one person is believed to have received medical attention.
The plane reportedly landed safely after descending more than 28,000 feet in only three minutes.
It is not known exactly what caused the issue or when the remaining passengers will continue on to Hartford.
This story will be updated when more information becomes available.