SIOUX FALLS, S.D. - UPDATE, Wednesday 1 p.m.:
Authorities say a robbery led to a report of shots being fired at a park in eastern Sioux Falls.
The incident took place around 4:45 p.m. Tuesday at Leaders Park.
According to police, the victim had a piece of property he wanted to sell. He sold the property on social media, and agreed to meet the buyer at Leaders park.
When the victim arrived at the park, he met one adult three juveniles. One of the juveniles wanted to inspect the property. That juvenile took off once he had the property in his hands.
Police say the victim began chasing the juvenile. During the chase, the victim told he police he heard gunshots being fired.
A witness close to the scene told police he also thought he heard gunshots, but police have yet to find any evidence of shots being fired.
Police are still searching for the adult and three juvenile suspects involved in the case. Police described them as black males. Anyone with information about the incident is asked to call Crime Stoppers at 367-7007.
UPDATE, 10 p.m.: Sgt. Robert Forster with the Sioux Falls Police Department said officers were initially called to Leaders Park after reports of gunshots being heard.
When officers arrived to the park, they spoke with a man who said he had been robbed of some property. When he chased the suspects, he said he heard gunshots. Other witnesses in the neighborhood heard the gunshots as well. One of them, Tim Nash, spoke with KSFY News, and said he heard multiple shots while standing outside with his brother.
Sgt. Forster said an update will be given at Wednesday's police briefing at 10:30 AM. But the park will remain closed as the investigation continues.
Sgt. Robert Forster with the Sioux Falls Police Department said Leaders Park in Sioux Falls is closed as officers investigate. He is asking people to stay away from the area, but the public is not in any danger.
Tim Nash has lived in the neighborhood for 35 years. He said he heard noises that sounded like gunshots just before 6:00 PM Tuesday. Sgt. Forster would not confirm that a shooting took place but said they have the park closed for an investigation.
Nash was on his driveway talking to his brother when he heard some noises.
"All of a sudden we hear this pop, pop, pop, pop. And we both kind of at the same time looked at each other and said, that didn't sound like firecrackers," Nash said. "It sounded like a pistol or something like a .22 shot or something like that."
Nash said another five to ten minutes later, he and his brother heard a couple more shots before Sioux Falls police arrived.
Sioux Falls police are asking people on social media to stay away from Leaders Park as well as the area of East 6th Street and North Leaders Avenue in the city.
This is a developing story, so be sure to stick with KSFY News for the latest information.