Metra trains were halted for about 15 minutes on the Union Pacific North near the Rogers Park station this morning while police investigated a threatening note.
The trains were halted shortly before 7 a.m., said Tom Miller, a Metra spokesman.
Police officers aided by canine teams investigated a threatening note left in the area, Police News Affairs Officer John Mirabelli said.
Police gave Metra officials clearance to resume service at 7:12 a.m.
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