Three military parachutists have been rushed to the hospital after a botched early morning training exercise at Homestead Air Force Base in Florida, according to local media reports. NBC Miami says the three victims—whose conditions are unknown—were taken to hospital after emergency crews arrived at the scene shortly after 4 a.m. Unnamed sources told the network they were taking part in what is known as a “halo jump” which involves jumping from the plane as high as 14,000 feet in the air before opening their chutes shortly before hitting the ground. NBC Miami reported all three are U.S. Army personnel.