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SPRINGFIELD, Pa. (CBS) — Police continue to search for several men involved in a shooting at Springfield Mall in Delaware County. An argument inside the mall on Saturday spilled out into the parking lot, where shots were fired.

The mall is now back open as police search for up to six suspects. They are going through surveillance video from cameras both inside and outside the mall.

A shopper’s cellphone video captured customers running through the parking lot moments after the gunfire. No one was hurt, but four vehicles were struck by stray bullets.

The mall shut down Saturday and reopened Sunday.

Springfield Police say what started as an argument inside between two small groups spilled into the parking lot.

That’s when a person from each side pulled out a gun and started shooting. Investigators believe at least one suspect is in his early 30s.

Springfield Police Chief Joseph Daly says there are no arrests but hopes that will change soon.

“We are running down a couple suspects, we have a few names, we’re running them all down. What we’re really interested in, if anybody was in that mall inside and had their video cameras running, or their cellphones on and recorded anything, if they could just give us a call and let us know. We would like to review it, and make a copy of it if it has any evidentiary value,” said Daly.

Investigators have identified one of the getaway vehicles as a silver Nissan Altima.

If you have any information, call police at 610-544-1100.