A gunman opened fire outside a hospital Monday, killing a woman and injuring two others before committing suicide, police said.
Knoxville Police Chief Sterling Owen IV said all the victims were female and current or former employees of Parkwest Medical Center. The attack happened about 4:30 pm outside the hospital's discharge area.
Police are still trying to determine a motive but don't believe the shooter worked at the hospital, Owen said.
The names of the victims and suspect weren't released by police because the families haven't yet been notified.
Police put the hospital on lockdown as officers searched floor by floor to make sure no one else involved with the attack had made it inside.
"The hospital is safe and is being reopened with limitations," Owen said.