1 shot at east Harris County Walmart after argument, shooter arrested: Sheriff

Authorities are piecing together what led up to a shooting at a Walmart in east Harris County Sunday afternoon. 

ALSO: Man shot at with 2-year-old inside vehicle in northeast Harris County

Harris County deputies were called to the 5600 block of E Sam Houston Parkway N around 12 p.m. That's when Sheriff Ed Gonzalez said via Twitter an unidentified man walked "into the store and shot someone."

According to Major Saul Suarez, two men got into an argument inside the back of the store before the shooting. Preliminary information says the two men possibly knew each other.

"I was in the office, and I just heard a whole bunch of gunshots," said a Walmart employee. "I heard about like five shots maybe and I heard people yelling and running. I couldn't make it out the store, so I ended up going into a dark room until I ran out the store."

According to Suarez, the shooter barricaded himself inside the Murphy USA gas station nearby and contacted 911 to let them know he was inside. Deputies say they were able to get in contact with him when they arrived.

The shooter was eventually arrested by deputies at the scene without incident, Sheriff Gonzalez confirmed. 

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Officials say the victim was shot in the abdomen and taken to HCA Clearlake where he is in stable condition. No one else was injured, but reports from witnesses say the victim was shot in front of his young children.

We're told the Walmart has since been closed.

Walmart shared with FOX 26, "We are working with law enforcement as they investigate."

FOX 26 will continue to make updates to this story as more information becomes available.