Hazmat was called to the East Village area of Downtown San Diego after a report of a suspicious package near the Transit Center Friday.
The incident began at 2:56 p.m. on 12th Street and Imperial Avenue, according to the San Diego Police Department.
A homeless person found a pipe while looking through trash and thought it was a pipe bomb. He tossed it back and called police, SDPD said.
The bomb squad blew up the device. There was no explosive residue found on it, according to police.
MTS did issue an alert due to police activity for the Green Line trolley, saying it would terminate at the Gaslamp Quarter. Commuters can transfer to O/B Lines from Santa Fe Depot. Service was later restored.
No other information was available.
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