Deputies issued a warning to beachgoers in Grays Harbor County on Monday as some highly explosive military rounds started washing up on North Beach.
The rounds are about 6 to 8 inches long and look like a large rifle round. Many of them are encased in a black rock or sludge.
Police believe the rounds date back to the 1940s and could potentially explode on impact.
Anyone who encounters a round is asked to give deputies a call.
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