MARINA DEL REY, Calif. (KABC) -- Before joining in on Memorial Day fun, Los Angeles police want to remind Southern Californians drinking and driving don't mix.
Within the first 90 minutes of setting up a checkpoint in Marina del Rey Friday night, four drivers were arrested for DUI.
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The checkpoint, east of the Venice Pier, is one of several taking place over the weekend.
The LAPD's Pacific Division has had a spike in alcohol-related collisions - some happened on Washington Boulevard, a main route to the beach.
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There are signs letting drivers know there's a sobriety checkpoint ahead. Those who make an illegal U-turn to avoid the checkpoint will get stopped by motorcycle officers monitoring the area.