OTTUMWA, Iowa (AP) — Police in southeastern Iowa say one person is dead and another injured following a shootout with officers that sent a nearby elementary school into lockdown.

The Ottumwa Courier reports that the shootout happened after police received a report around 1:40 p.m. of people with guns outside near Liberty Elementary.

Ottumwa Police Chief Tom McAndrew says that when officers arrived, the suspects and officers exchanged gunfire. The shooting left one suspect dead. McAndrew says another suspect was taken to a local hospital with "very serious injuries." He says another person was arrested and a fourth suspect is still on the run and being sought. Police believe that person is armed and dangerous and urged residents in the area to stay inside their homes.

Police say no one else was injured. Students and staff at Liberty Elementary were taken to a shelter inside the school guarded by police and remained there until late Friday afternoon.

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Information from: The Ottumwa Courier, http://www.ottumwacourier.com