Authorities have reopened Sixth Avenue and G Street in the Gaslamp Quarter after it was closed after someone found what appears to be a grenade round, officials said.
The person reported finding a 40-mm grenade round just after 11:30 a.m. and San Diego police cleared the area as a precautionary measure.
Pedestrians and vehicles are being redirected, officials said.
No one has been hurt.
The bomb squad is investigating, but the area was reopened after the threat was mitigated.
No further information was immediately available.
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