YUMA, Ariz. — Yuma police say five people have been killed in a shooting that has forced authorities to close schools and the courthouse.

Details about the shooter and victims were not immediately clear.

Yuma police Sgt. Clint Norred says that five people were killed in the Yuma area. It’s unclear if there were others who were injured.

Norred says police originally responded to a shooting call about 9:30 a.m. today.

The Yuma Sun reports the Yuma County Courthouse and schools in the area have been placed on lockdown.