Wal-Mart evacuated after people inside become ill

PORTER, TX Four shoppers had to hospitalized. Those shoppers were inside the Wal-Mart on Highway 59 in Porter late Saturday night. Many say they began coughing, and had trouble breathing.

Firefighters were called out and the entire store was evacuated.

"We evacuated Wal-Mart, brought in Harris County HazMat to do some air sampling," said Asst. Fire Chief Carter Johnson of the Porter Fire Department. "Once Harris County HazMat arrived on location, they were unable to find the source of the irritant. Right now it's unknown."

We're told pepper spray may be to blame. Another 14 people were treated at the scene.