According to Denver Police, the zoo received a call from an unidentified individual threatening to fly an airplane into the facility. They later determined the threat was not credible and announced the park would reopen today.

Denver Post Reported

The Zoo evacuated more than 1,000 guests from the park and moved animals to safety.

- Police said they are working with their federal partners to determine where the threat came from. 

Also in Zoo news

Two popular residents will be leaving the Denver Zoo. The zoo’s two polar bears are being separated and sent to two other zoos in the hopes they produce offspring with new mates.

“Cranbeary, the 16-year-old female, will leave this month for The Alaska Zoo, while Lee, her 18-year-old mate, will depart later in the fall for Columbus Zoo and Aquarium.