Passengers on an Air Canada flight from Toronto to Deer Lake, Newfoundland, Wednesday were in for an unpleasant surprise when their plane was forced to make an emergency landing due to an issue with cabin pressure.

In a report from Peder Myhr of the Global News, Air Canada Flight AC682 departed from Toronto Pearson International Airport at 3:10 p.m. local time, but was forced to make an emergency landing at Halifax Stanfield International Airport at around 5:30 p.m. local time.

The plane was originally scheduled to arrive at Deer Lake Regional Airport at 7:24 p.m. local time.

Air Canada released a statement to the Global News about the emergency landing, saying, “The aircraft landed normally and safely after it developed a cabin pressurization issue, during which oxygen masks were deployed. The cause has not been determined at this time, and the aircraft has been taken out of service for evaluation. Customers still wishing to travel will be re-booked on a new flight this evening to Deer Lake.”

Julia Wong of the Global News broke the story as it unfolded on Twitter:

Bezanson says from his vantage point there is no visible smoke or fire from the outside. #ac682 #halifax

— Julia Wong (@JWongGlobalNews) August 5, 2015

HIAA says the pilot declared the emergency. Spokesperson says the plane had a mechanical issue. #ac682

— Julia Wong (@JWongGlobalNews) August 5, 2015

#aircanada says #ac682 experienced cabin pressurization issue, during which oxygen masks were deployed. #Halifax

— Julia Wong (@JWongGlobalNews) August 5, 2015

Officials at the Halifax airport told Wong that the plane landed safely and that all 90 passengers and crew members on board the Embraer 190 regional jet at the time of the landing were uninjured.

Air Canada has faced other issues this year at Halifax Stanfield International Airport as well, including a crash landing in March. TravelPulse’s Michael Isenbek reported that Air Canada Flight AC624 took a very hard landing that did major damage to the plane and left several passengers injured.

Luckily, there were no injuries during Wednesday’s incident.

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