CU police said they received 911 calls just before midnight about shots fired near campus. Police said no one was injured.
At 12:33 a.m. an alert was sent out to dorm residents asking them to shelter in place as police looked for a suspect. The suspect was described as a Hispanic male, about 5 feet 4 inches tall, with a chubby build. He was wearing a black sweatshirt with red stripes on the sleeves, and a white jersey over the top with the number 76 on the back.
At 1:03 a.m., 30 minutes after the first alert was sent out, another alert was sent out saying the building had been searched and the suspect was not located.
Police then lifted the shelter in place order.
CU police said they will continue with increased patrol on and around campus as planned for the Halloween weekend.
Police did not say if the suspect was believed to be a student or not.
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