A shooting at a Huntsville Wal-Mart that sent one person to the hospital and injured a bystander late Sunday remains under investigation.

An argument resulted in shots fired outside the Wal-Mart on Sparkman Drive, sending to the hospital one person who was involved in the altercation and causing minor injury to a woman who was walking into a nearby store, police said. The woman was grazed by a bullet, which caused minor injuries. Lt. Stacy Bates said.

The other victim was taken to the hospital after a friend drove him to the 2000 block of Memorial Parkway at a Kroger Store, Bates said.

The victim remained in serious condition this morning, according to police.

Bates said authorities will released additional details, including a suspect description, later.

Further details were not immediately available.