The first fire crews to arrive reported that a plane was upside down on the runway with two patients, according to Renton Regional Fire Authority, reported Kiro7.

One person was rushed to the hospital after the crash.

The other injured person, who was onboard, was treated at the site of the crash.

Firefighters had to control a fuel leak from the plane, reports Kiro7.

Renton Regional Fire Authority tweeted: " Crew on scene of an aircraft crash at Renton municipal airport. One single plane upside down on runaway with 2 patients. One being transferred to local hospital and one being treated and released. Crews also treating a fuel leak on scene."

The cause of the crash is still not known.

The FAA and National Transportation Safety Board will reportedly investigate the incident.