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An 18-year-old man was critically hurt and a 16-year-old girl was injured in a stabbing early Wednesday morning in the Gresham neighborhood on the South Side.

The man and the girl were in the 8800 block of South Emerald Avenue around 2 a.m. when they became involved in a verbal and physical fight with an attacker, said Officer Veejay Zala, a Chicago police spokesman.

The fight escalated, and the attacker pulled out a pocketknife and stabbed the man and girl.

The man was stabbed in the neck. He was taken in critical condition to Advocate Christ Medical Center in Oak Lawn, Zala said.

The girl suffered a cut to her right shoulder, and she was taken to Roseland Community Hospital in good condition, Zala said.

Police are still investigating. No other information was immediately available.