An entrance ramp to the 405 Freeway near LAX was closed Friday morning after the discovery of grenade.
The Century Boulevard entrance ramp to the northbound 405 Freeway was closed for the investigation.
The California Highway Patrol said it was not immediately clear whether the grenade is live or inert. Details about how the grenade was discovered were not immediately available.
The freeway entrance ramp is expected to remain closed for about an hour.
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