By CBS 2 Chicago Staff

CHICAGO (CBS) — Someone fired shots at police early Sunday in the North Austin neighborhood.

At 3:06 a.m., officers were called to the 5100 block of West North Avenue for a ShotSpotter alert, and were fired upon by one or more people after entering a courtyard, police said.

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Neither of the two officers at the scene was injured, and they did not return fire, police said.

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No injuries were reported, and no description of the suspects was available.

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Area Five detectives were investigating Sunday afternoon.

CBS 2 Chicago Staff