Extreme heat at a Colorado airshow caused about 100 people to seek emergency treatment and sent 10 people to area hospitals on Saturday, officials said. The majority of patients were treated by emergency personnel onsite at the Pikes Peak Regional Airshow, the Colorado Springs Fire Department said in a statement posted on social media. Colorado Springs Fire Chief Randy Royal said the “quick actions” of organizers and emergency officials prevented serious injuries at the event held at the Colorado Springs Municipal Airport, about 81 miles (130 kilometers) south of Denver. The airshow’s website indicated tickets were sold out for both days of the event on Saturday and Sunday, featuring performances by the famed U.S.