A fiery crash in Phoenix on Wednesday night involving a tanker truck left at least four people dead sent nine others to hospitals, according to a report.

At least six of those injured were in critical condition, KTVK-TV of Phoenix reported.

The crash happened around 10 p.m. on the Loop 202 Red Mountain Freeway near 59th Street, according to KPNX-TV in Phoenix.

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Emergency vehicles from Phoenix, Scottsdale, Tempe and Mesa responded to the scene, KTVK reported.

It was unclear how long the stretch of roadway would be closed, KPNX reported.