Oregon police say two people have been killed and two others wounded in a shooting at a suburban Portland office park. The shooting at a drug-testing facility was reported at 11:48 a.m. Tuesday. Police said the suspect is not at large but there are no additional details.

The wounded have been taken to Emanual Hospital. Their conditions are not immediately available.

The Tigard-Tualatin School District was in lockdown following the shooting.

THIS IS A BREAKING NEWS UPDATE. Check back soon for further information. AP's earlier story is below.

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TUALATIN, Ore. (AP) - Oregon police say at least one person has been killed in a shooting reported at a suburban Portland office park.

Initial reports were sketchy but witnesses told television stations they heard shots.

KATU-TV reported a witness describing one woman wearing something that looked like a lab coat with blood coming from what appeared to be multiple gunshot wounds.

Police say the suspect is not at large. But there were no additional details.