March 29 (UPI) -- Passengers traveling on a Boeing jet from San Francisco to Paris made an emergency stop in Denver Thursday after the crew reported an engine problem.

United Airlines told media outlets that United Flight 990 landed safely in Denver after the plane experienced an issue with one engine.

Emergency services were on standby when the plane landed but were not needed, United said.

The Boeing 777-200 was carrying 273 passengers and 12 crew members. Customers deplaned normally in Denver, and the Paris flight was canceled.

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