00:48 Sioux Falls Tornado Rips Apart Building in Newly Released Footage Newly released footage from inside a health center in Sioux Falls shows the damage done by an EF-2 tornado that struck the city one year ago.

At a Glance Large hailstones injured at least eight people at Cheyenne Mountain Zoo.

The zoo said three animals – two vultures and a duck – were killed by the hail.

Other areas near Colorado Springs reported softball-sized hail.

Cheyenne Mountain Zoo in Colorado Springs, Colorado, will be closed Tuesday after at least eight people were injured and three animals were killed in a hailstorm Monday afternoon.

The zoo's infrastructure was damaged and debris was scattered throughout the grounds, officials posted on the zoo's website.

The hailstorm lasted about 15 minutes , Jenny Koch, marketing director of the zoo, told the Denver Post.

“It was hail the size I’ve never seen before,” she said. “Basically chunks of ice.”

The individuals were taken to hospitals, Colorado Springs Police said.

Officials were not allowing visitors to drive their cars from the zoo because many had smashed windshields from the hail . The zoo said that about 400 guest cars were severely damaged.

All 3,400 guests were evacuated from the zoo, the Denver Post also reported. The zoo also said Daisy, a 4-year-old muscovy duck, and a 13-year-old cape vulture, Motswari, were killed during the storm, and a second vulture death was later confirmed by the Post.

Parts of El Paso County, where Colorado Springs is located, were hammered with hail Monday afternoon . Softball-sized hail was seen about three miles south of Colorado Springs.

According to National Oceanic and Atmospheric Administration statistics, 14 people were injured by hail in the U.S. in 2017.

The last documented U.S. hail death occurred in late March 2000, when a teenage pizza delivery driver was hit in the head by softball-size hail in the Ft. Worth, Texas, metro area.

(MORE: The Danger of Large Hail )

160-Plus Mile-Long Nebraska Hail Swath

A separate hailstorm dumped up to softball-sized stones for at least 160 miles across western Nebraska Wednesday afternoon and evening.

<img class="styles__noscript__2rw2y" src="https://s.w-x.co/6aug18-cos-neb-hailtracks-reports.gif" srcset="https://s.w-x.co/6aug18-cos-neb-hailtracks-reports.gif 400w, https://s.w-x.co/6aug18-cos-neb-hailtracks-reports.gif 800w" > Radar-estimated hail swaths on August 6, 2018. The Colorado Springs hailstorm is denoted by the orange arrow. The western Nebraska hail swath is denoted by the yellow arrow. The final frame shows hail reports received by the National Weather Service. (Storm reports: NWS) (Storm reports: NWS)

Along its just over three-hour journey, this supercell thunderstorm damaged windows and siding of homes near the town of Lisco and in the city of Oshkosh.

Crops were damaged by wind-driven hail near Big Springs, just across the Colorado border, as documented by storm chaser Dan Fitts.

The northwest-to-southeast hail swath was detected with nighttime GOES satellite imagery early Tuesday morning.

(MORE: America's Hail Alley )

Another hail storm in eastern Nebraska left holes in home siding, broke windows, and left hail drifts in the streets of Utica, Nebraska, about 35 miles west-northwest of Lincoln, Monday.

Early in the afternoon, hail up to 2 inches in diameter pelted parts of Cheyenne, Wyoming, including at the National Weather Service office .