Multiple fighter jets were spotted over various locations in Fairfield County on Sunday afternoon, causing concern and questions on social media.

According to a tweet from the New York City Office of Emergency Management, five planes are preparing for a scheduled flyover of the U.S. Open.

Planned Flyover: five F-15E Strike Eagle aircraft will fly over the Hudson River, over Manhattan, &to the US Open (QN) on 9/10 btwn 3PM-4PM — NYCEM - Notify NYC (@NotifyNYC) September 9, 2017

Many people initially thought the planes might have been headed to a football game, except both New York teams are playing out of the area today.

Tweets came to us from viewers in Fairfield, Stamford, Wilton, and Norwalk, all spotting the fighter jets. Many saw the fighter jets do multiple passes.

PHOTOS: Fighter Jets Over Fairfield County

The men's final of the U.S. Open was scheduled for a 4:00 p.m. start in Flushing, N.Y.

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Chief Gary MacNamara of the Fairfield Police Dept. confirmed on Twitter that the "In case anyone asks. The jets over fairfield are part of a Flyover for the US Open in Flushing Queens."