Police have arrested a man suspected of opening fire on a Powder Springs gas station Tuesday afternoon and seriously injuring two people, officials said.

Trayvon Omar Jenkins, 20, of Marietta, was arrested about six hours after the shooting, which resulted from an argument with a manager, Powder Springs police spokesman Jon Gargis said in a news release. Jenkins was taken to the Cobb County jail and booked on two counts of aggravated assault and one count each of reckless conduct and tampering with evidence.

The shooting took place at a Shell at 1390 Richard D. Sailors Parkway. Both victims were taken to the hospital in critical condition, Gargis confirmed in an email to The Atlanta Journal-Constitution.

According to police, Jenkins got involved in a dispute with the gas station’s manager, who accused him of stealing from the store in the past. While arguing with the manager, Jenkins tried to steal multiple items but was confronted by a bystander who stopped the theft, Gargis said.

Jenkins then went to his car and got an “AK-style” assault rifle and began firing on the store from the parking lot, the spokesman said.

Police said both victims were expected to survive but did not share any specific information about the nature of their injuries, or their identities.