Two planes clipped each other at Detroit Metro Airport on Wednesday morning, according to an airport spokesperson.
American Airlines Flight 1241, bound for Dallas, was traveling down the runway just after 6 a.m. when a wing hit the tail of a Southwest plane, Detroit Metro Airport spokesperson Erica Donerson said.
"We heard a loud crunch noise, and we all looked out of our window and saw the back end of the SW plane had been swiped off," passenger Fletcher Sharpe told NBC in an email. "We also saw our wing had been damaged."
Southwest Airlines Flight 737 was on the de-icing pad at the time of the collision, and the American Airlines plane was heading to the pad at the time of the incident, according to Donerson.
No injuries have been reported.
Officials said the planes immediately returned to their gates for inspection, but Sharpe told NBC, "From 6:45 until 7:53... we had been sitting stationary."
The cause of the incident is still unknown.