A United Airlines spokeswoman issued a statement earlier this afternoon saying that "upon arriving at the gate at Washington Dulles today, the wingtip from United flight 951 from Brussels made contact with the wingtip of a second United aircraft parked at an adjacent gate. The passengers and crew deplaned the Brussels flight. There were no passengers onboard the parked aircraft. Our maintenance team is evaluating both aircraft to determine any damage."

According to the Washington Airport Authority, the incident occurred at around 2:30p ET.