Three people were killed and 15 others were injured at “an unsanctioned car show” in a park in Las Cruces, New Mexico Friday night mass shooting, according to police.

The Las Cruces Police Department said the shooting happened at around 10 p.m. at Young Park, over 200 miles south of Albuquerque. A preliminary investigation revealed an altercation between two groups at the car show escalated into gunfire, injuring many, including bystanders, according to Police Chief Jeremy Story.

Two victims were killed as the scene and a third was pronounced dead at the hospital, according to Las Cruces Fire Chief Mark Daniels. The three victims are a 16-year-old boy and two 19-year-old men.