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A small plane with two people on board crashed in a field near Corona Municipal Airport Tuesday.

Emergency vehicles could be seen responding in the 11 a.m. hour, when the wreckage of the red-and-white plane remained in the field.

A Federal Aviation Administration spokesman said a Harmon Rocket airplane crashed under unknown circumstances. Two people were on board, the FAA official said.

The two patients were taken to a local trauma center, the Corona Fire Department stated on Twitter. The patients’ injuries were described as “moderate to severe.”

The Fire Department called the incident a “plane emergency landing.”

The FAA and the National Transportation Safety Board will investigate the crash.

KTLA’s Jennifer Thang contributed to this article.

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