Two passengers who were waiting to board a United Airlines flight to New Jersey at Piedmont Triad International Airport (PTIA) on Sunday evening, Dec. 10, were told by airport security that they would not be allowed to board the plane for Newark.

According to Sharon Dente, a resident of Wayside, New Jersey, who works in the public school system in that state, a group of passengers was waiting to board United Airways flight 3660, which was supposed to depart Greensboro at 8 p.m.

However, about 15 minutes before boarding, she said, two airport police officers approached a man sitting behind her in the waiting area.

“I heard the police say that the airline did not feel safe with him and his friend getting on the plane,” she said, adding that she didn’t know the reason the two were being removed.

She snapped the photo above over her shoulder as the officers addressed the man.

Dente, who began moving to a different part of the waiting area once the airport police arrived, said she also heard the man say that “his partner” was in the restroom, though she wasn’t sure whether the second person was male or female.

The flight ended up taking off just after 9 p.m., an hour later than scheduled.

United Airlines’ has not yet responded to an email sent that night asking the reason airline staff felt uncomfortable with the pair on the plane.

Kevin Baker, the executive director of PTIA, wrote in an email, that his understanding is “there was apparently a situation between two passengers, and the UA staff/Pilot advised one of the parties that they could not fly as a result of their behavior.”