Authorities will collect unwanted and expired prescription drugs Saturday from residents looking to get rid of their supplies.

The Crescenta Valley Sheriff's Station, Glendale Police Department and CV Alliance, a local nonprofit drug and alcohol prevention organization, will oversee four drop-off sites from 10 a.m. and 2 p.m.

The no-questions-asked collection is part of a nationwide one-day event aimed at preventing pill abuse and potential drug-related thefts.

More than 950 pounds of prescription and nonprescription drugs were collected in Montrose, La Crescenta and La Cañada Flintridge last year during a similar event.

Authorities amassed 324 tons of prescription drugs last October at thousands of drop-off sites nationally.

To drop off unwanted drugs, visit the following locations.

- CVS Pharmacy at 2037 Verdugo Blvd. in Montrose

- Rite-Aid Pharmacy at 2647 W. Foothill Blvd. in La Crescenta

- Rite-Aid Pharmacy at 647 Foothill Blvd. in La Cañada Flintridge

- Glendale Community College-Glendale at 1500 N. Verdugo Road in Glendale

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Follow Veronica Rocha on Google+ and on Twitter: @VeronicaRochaLA.

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