Updated 11/2/17 – 10 a.m.

CHICAGO (CBS) — Two Oak Park police officers were injured in a crash early Thursday, when their squad cars collided while responding to a call.

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Police said the officers in the two squad cars — one SUV and one sedan — were responding to another officer’s request for assistance with a traffic stop around 3;30 a.m.

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One responding officer was heading north on East Avenue, and the other was traveling west on Adam Street, when both of them blew a four-way stop and collided at the intersection, police said.

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Paramedics took the officers to Loyola University Medical Center in Maywood. Neither officer’s injuries were life threatening; one of the officers was released by 9:30 a.m., and the other was still at the hospital undergoing tests.