By Matt Petrillo

PHILADELPHIA (CBS) — A man is fighting for his life and a shooter is on the run after opening fire Friday morning inside a Wawa in Kensington. Police say it was all over social distancing.

Right now, detectives are reviewing security video that may show the shooting and the gunman who shot a man in the chest in the Wawa.

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“The violence in Philadelphia needs to stop,” one woman said.

Philadelphia police rushed to the Wawa on East Erie Avenue near Castor Avenue around 4:45 a.m. That’s when officers say shooting erupted over a social distancing dispute.

“When the shooter first tried to enter the store the security guard assigned to Wawa said you have to wait your turn, others have to exit before come in due to social distancing. And that is what initiated the argument,” Philadelphia Police Chief Insp. Scott Small said.

You can see signs inside the Wawa reminding customers to stay six feet apart.

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But police say the argument between the suspect and a security guard turned into a fight. That’s when a 25-year-old customer stepped in, but the suspect took out a gun and shot him in the chest before then taking off on foot.

The victim was taken to a nearby hospital in critical condition. Customers hope he pulls through.

“An innocent person right now is fighting for his life. And I hope whoever did it gets caught and justice be served,” said a woman named Nicole.

“It’s messed up. Social distancing and wearing a mask, it’s expected right now with what’s going on with the coronavirus,” said Juniata resident Christian Olson.

Wawa said in a statement: “Wawa and our Security and Operations teams are working in full cooperation with authorities to support their efforts. Nothing is more important to us than the safety and security of our associates and customers.”

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The Wawa has since reopened.