A group of three thrillseekers broke onto the roof of Chicago's Trump Tower overnight Thursday and jumped from a roof area of the 1,389-foot-tall skyscraper using parachutes.
The trio was spotted jumping around 12:30 a.m. Thursday, prompting a series of 911 calls from Trump Tower residents, according to the Associated Press.
Police told NBC Chicago the jumpers used "a cutting device to gain entry" to the building. It is unknown how long they were in the building prior to the jump, but nothing inside the building, located at 401 N. Wabash Ave., has been reported stolen. The jumpers were gone, apparently uninjured, by the time police arrived.
No one was in custody Thursday morning as a police investigation was under way, DNAinfo Chicago reports. Low-quality photos of the suspected jumpers, taken from surveillance cameras inside the Trump Tower, were released Thursday afternoon by police:
The stunt was called "impossible" by one Trump Tower resident interviewed by ABC Chicago. The trio leapt from a point atop the skyscraper that is not open to the public.
"I don't know how anyone would get up there on the 91st floor of the building, it is like Fort Knox," the resident told the station.
In 2010, when "Transformers 3" was filming in downtown Chicago, a team of BASE jumpers took a similar plunge off Trump Tower -- though they'd obtained the proper permits to do so legally.
The Trump Tower is Chicago's second tallest building. The building's highest roof stands about 1,200 feet off the ground, according to the Chicago Tribune.