COLUMBIA, S.C. (AP/WNCN) – Police say a shooting at a shopping mall in South Carolina’s capital has left 12 people injured and three people have been detained.

Columbia police said they evacuated the Columbiana Centre mall Saturday afternoon.

The shooting took place just after 2 p.m. near the Gap store inside the mall, police said.

Ten people were shot and two others were injured while trying to get out of the mall, according to police. No one has died, police said.

Two of the shooting victims are in critical condition.

CBS affiliate WLTX reported that witnesses said they heard gunshots inside the mall and saw people running from stores. Also, witnesses saw some people lying on the ground but it was unclear if those people were injured.

“Today’s isolated, senseless act of violence is extremely upsetting and our thoughts are with everyone impacted,” Columbia police said in a statement. “We are grateful for the quick response and continued support of our security team and our partners in law enforcement.”

Workers from a couple of stores clustered in the mostly empty parking lot Saturday evening said they had not heard or seen anything during the shooting but followed the mall’s alert system and were evacuated by police shortly after.

They said they had been waiting hours ever since for police to let them back inside to retrieve their car keys and personal belongings so they could leave. They declined to give their names, citing company policies.