Philadelphia City Hall was evacuated after a suspicious package was found in the transit station below the 112 year old building.
Philadelphia Police say a SEPTA employee found an unattended bag left unattended at a ticket counter in front of the transit authority's City Hall station.
Officers and the bomb squad were dispatched to the station at 15th Street and John F. Kennedy Boulevard around 4:30 a.m. Sunday to check out the bag.
Police evacuated the station, which serves as a hub for three transit lines, and Philadelphia City Hall as they inspected the package.
SEPTA also stopped all trains from entering the City Hall Station, which serves as a transit hub for three lines -- the Broad Street Subway, Market-Frankford El and Subway-Surface Trolley line.
A bomb-sniffing dog and his partner gave the all clear about a half-hour later at 5 a.m. Sunday.