One of the three dogs missing from a facility outside Denver. (Douglas County Sheriff's Department)

Three dogs that were being trained for use in law enforcement were stolen from a kennel at a facility outside Denver where the animals are trained, officials said today.

The dogs, which where found to be missing from their kennels Friday, could not have gotten out without someone releasing them, according to police. Although the animals were being trained for use in the military and law enforcement, they were not yet part of a specific law enforcement agency.

The owner of the facility, Izzet Gunbil, said the dogs were valuable due to their training and their breeding.

"Fully trained dogs like one of the ones that was stolen would definitely be able to resell," Gunbil told ABC News. "All three dogs were German imports. … I'm still a little shaken."

Gunbil said the dogs - one female and two males - could possibly be used for breeding and the facility currently houses around 24 dogs. Officials from the Douglas County Sheriff's Department are asking the public to help to locate the animals, named Alonso, Linka and Dux.

Anyone who believes they have seen the animals should not approach the animals and instead call the police tip line at 303-660-7579. Police warn the animals could be aggressive toward people.

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