"At around 1 p.m. today, Overland Park police received multiple calls regarding a shooting on the campus of the Jewish Community Center, 5801 W. 115th Street. Additional calls were received by police of another shooting at the Village Shalom Retirement Community, 5500 W. 123rd," according to the Overland Park Police Department.
"Three victims are confirmed deceased. A person of interest has been taken into custody at this time," the police spokesman said.
CNN reported that the deceased included a teenager and an elderly woman.
During the initial developing story, a spokeswoman for Overland Park Regional Medical Center said the hospital was treating a 14-year-old male who suffered a gunshot wound and who was in critical condition.
The gunman fired toward a total of five people, three of whom were confirmed dead, authorities investigating the incident said at a press briefing.
Overland Park Police Chief John Douglass said it was too early to label the attacks as anything other than "vicious acts of violence."
He stated that two males were killed outside the Jewish Community Center of Greater Kansas and one female at the nearby Shalom Village retirement home.
He confirmed that police had a white male in his 70s in custody for questioning. He added that the man was unknown to police until today.
The Jewish Community Center of Greater Kansas City said on Facebook that no shooting had occurred inside its campus, and it had released home all the participants of its programming.