People will be able to drop off expired, unused and unwanted medications on Saturday at sites across the region.

Many police departments and some other government agencies will be collecting the drugs from 10 a.m. to 2 p.m. Saturday as part of the Drug Enforcement Administration’s third national Take Back Initiative.

The DEA wants to encourage safe disposal of medications as part of the agency’s expanding efforts to curb prescription drug abuse

The agency collected 18,537 pounds of prescription and over-the-counter medications in the Washington region area in April during the last disposal event, according to Ava A. Cooper-Davis, who oversees the DEA’s operations in the District, Maryland, Virginia and West Virginia.

“People come to us at these events with bags full of prescription drugs,” she said. “They thank us because they’re not sure how to dispose of these drugs safely.”

The DEA works with local organizations, including local police agencies, to hold the event. There will be 13 disposal sites in the District, and dozens of sites in suburban Maryland and Virginia. To find local collection sites, visit the DEA’s website.