Due to a medical issue onboard, the flight diverted to Grand Junction and landed there safely shortly after takeoff from Denver.
United flight DEN to LAX diverted to Grand Junction due to low cabin pressure. @KDVR @DenverChannel #oxygenmasks pic.twitter.com/ymTF4OW7yr
— Niles Emerick (@naemerick) 22 Juillet 2015
Then Oxygen mask selfies appeared on twitter: