Small plane crashes at Renton airport

RENTON, Wash. - A single-engine plane crashed Monday morning at the Renton Municipal Airport .

According to Renton Fire officials, the first arriving engine reported a single plane upside down on the runway at about 9 a.m.

Two people were on board. One person was taken to a local hospital and another was treated at the scene and released. 

It's unknown what led up to the crash.

The FAA and National Transportation Safety Board will investigate.