At least 13 people were injured in a mass shooting during a party at Spring Creek Park on Arcadia Lake, about 15 miles northeast of downtown Oklahoma City, late Sunday evening [1].

Gunfire broke out around 9 p.m. during a gathering of young people at the campground. Authorities said no arrests had been made as of late Sunday [1].

Ten victims were taken to hospital by ambulance while others drove themselves, with 10 patients reported at Integris Health Baptist medical center in Oklahoma City and three at Integris Health Edmond hospital Monday morning. Victims were in various conditions [1].

Emily Ward, a law enforcement spokesperson, said, "This is obviously a very terrifying situation and we understand the concern from the public and those involved and we are working extremely hard to find the suspects." She added, "We're kind of all over the metro speaking with victims and witnesses" to gather information [1].

One victim, Armani Kessee, described being hit by a stray bullet and said, "It's very sad to see someone that you know, that you love … it's a very hard thing." [1]

A flyer on social media had promoted an event called Sunday Funday scheduled for Sunday evening at Spring Creek Park, though details remain limited [1].

This incident marks the 131st mass shooting in the United States this year, according to Gun Violence Archive data cited by authorities [1].

Police continue to investigate the shooting and work to identify and apprehend suspects. No further information on motives or additional victims has been released.