UPDATE: Dozens of shoppers and staff were urged to leave Tivoli Village Friday after reports of an ominous threatening message.
The news broke when police discovered a graffiti message on one of the walls. It said, "KILL AMERICANS.”
Managers immediately sent out memos to staff giving them the option to leave early.
"One by one they were going office to office saying there's been some type of threat and that everybody needs to just leave," said Milan Thakkar. He rents an office in the building.
Police said a mandatory evacuation was not necessary so the shopping center, as a whole, remained open.
Police found the graffiti in the unfinished section of Tivoli Village on a wall that is under construction.
They cleaned it up immediately, but they are still searching for the person responsible.
Anita Gramont also rents an office at Tivoli Village, but she decided the stay and work despite the suggestion to leave.
"I have work to do," she told 13 Action News.
LAS VEGAS (KTNV) -- Business owners at Tivoli Village near Rampart Boulevard and Alta Drive received a bit of a fright on Friday.
According to one owner, he received a call and was told to shut down his store for the day because of terroristic threats that were made against Tivoli Village.
Las Vegas police confirmed that they were called to take a report of threatening graffiti.
A copy of a letter given to 13 Action News says that although an evacuation was not ordered by local law enforcement, the center was being closed as a precaution.
13 Action News has a crew on the way and will update this story when more information is received.