Residual delays of 10 to 15 minutes were seen between South Norwalk and Stamford due to the earlier police activity, Metro-North said.
A lost cellphone wedged between the seat and the wall of a train car began beeping at about 7:10 a.m., the Advocate reported.
The train was held at Noroton Heights while a canine unit searched the cars before passengers were allowed to re-board and continue on to Grand Central, a Metro-North official told the Advocate.
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