A dog whose paw got stuck in a moving walkway at Denver International Airport on Thursday morning has prompted airport officials to warn travelers with furry friends to steer clear of the mechanical sidewalks and escalators.

Details about the dog or the extent of its injuries weren’t immediately known, according to Emily Williams, a DIA spokeswoman.

The unfortunate incident happened around 9:30 a.m., Williams said.

“The people around the dog were really freaked out, understandably so,” Williams said. “We are not really sure how the dog got free. It sounds like somebody hit the emergency stop on the moving walkway, which is exactly what we want to happen in a situation like this. It’s very sad this happened, and we don’t want this to happen.”

Williams recommended pet owners skip moving walkways or escalators at the airport.

“They roll and are mechanical, so there’s a lot of places where fur can get stuck,” Williams said.

In addition to furry friends, Williams said that moving sidewalks can also pose safety issues for strollers, wheelchairs and walkers, as well, as the device can also get caught at the end of the walkway.