Thirteen, including a 3-year-old, reported injured in Chicago mass shooting

Thirteen were reported injured in a shooting at 51st and Wood in Chicago late Friday night.

2 male shooters in all black, entered park & started shooting near b'ball court #Chicago

— ?????????????? (@Chicago_Scanner) September 20, 2013

51st & Wood (Chicago Park): EMS PLAN 2 (10+ ambos) for the multiple shooting victims pic.twitter.com/sI6fkyLL6b

— Paris Lewbel (@PLewbel) September 20, 2013

https://twitter.com/PeterNickeas/status/380901072144850944

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Twitchy will update this post as details emerge.

Update:

Authorities now say 13 people were injured in the shooting.

UPDATE: Police now say at least 13 people were shot in the Back of the Yards neighborhood of Chicago: http://t.co/ygBoO4jv7v -CJ

— The Associated Press (@AP) September 20, 2013

Authorities believe the shooting was gang-related.

3-yr-old in critical and 12 others shot overnight in Chicago in what police say is likely a gang related shooting. #CNN

— Sara Pratley (@cnnsara) September 20, 2013

Editor’s note: The title of this post has been updated to reflect the latest information that a total of 13 were reportedly injured.