Chicago police are warning people to walk in groups after two women were sexually assaulted on the city's Near North Side.
In a community alert, the department says that the first attack happened June 17 and the second one happened early Sunday morning. The alert says in each case a man approached the victims on the street, dragged them into an alley and then sexually assaulted them.
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The department believes the same man is responsible for both attacks.
Anyone with information is asked to call Area Central detectives at (312) 747-8380