One person was killed and another wounded in a shooting Wednesday evening at UAB Hospital Highlands. A third person -- the gunman -- then shot and killed himself, according to Birmingham police.

One victim, an employee, was shot multiple times in the chest and rushed to the main UAB Hospital. The second victim was being treated at Highlands. At least one of the two injured is a male.

The surviving victim is in stable condition, police said just before 10 p.m.

The shooter, a male, was found dead in a third floor emergency room from a self-inflicted gunshot wound.

At 6:55 p.m., police received the citywide call of an active shooter at the hospital. "There is no threat to the public," Lt. Peter Williston said at 8:40 p.m.

After police determined the scene was secure, officers searched each room. Paramedics entered the building through the same-day surgery entrance and were taken to the second floor where it was believed the victims were located.

It appears police have made about a 3-4 block perimeter around UAB Highland. — Anna Beahm (@_AnnaBeahm) March 15, 2018

Employees were led to UAB Police headquarters. One woman who appeared to be an employee collapsed from an apparent panic attack and was examined by medics.

After going into a lock-down following reports of the shooting, UAB around 7:45 p.m. sent an alert saying police "issued an all clear."

Birmingham Fire and Rescue Service Capt. Harold Watson said the shooting points to the need for more active shooting training for first responders and for the general public to be more aware of their surroundings.

All UAB Highlands Hospital surgeries scheduled for Thursday are cancelled. All other UAB campuses will operate at normal times.

The facility is at 1201 11th Ave. S.

AL.com reporters Ivana Hrynkiw and Anna Beahm contributed to this report.