A nighttime dispute ended in gunfire in the parking lot of a high school around 9 p.m. Thursday, Colorado Springs police said.

A witness told officers that several people were standing around two cars and arguing in the west parking lot of Mitchell High School when several rounds were fired and the cars sped away, police said.

The witness also told police that several people were seen running from the area to a nearby apartment complex.

Officers said that "multiple items of evidence" were recovered from the scene.

Police said they don't believe anyone was hit by the bullets, and that only one caliber of bullet casings were found.

Police are also on the lookout for a late '90s Astro van with temporary tags, which they believe was at the scene.

Anyone with information is asked to call police at 444-7000.