CHICAGO (CBS) — In Chicago, dozens of organizations are using September 11 as a day to give back.

(Credit: CBS)

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Known as a national day of service, several thousand volunteers are making their way to Union Station throughout the day, not to catch a train, but to line up and put together bags of food for the hungry.

(Credit: CBS)

Dozens of assembly lines are set up where people are putting together oatmeal packets to be boxed up and shipped out.

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Maclovio Lopez is with Feeding Children Everywhere. That organization hopes to take in close to 300,000 packets at Wednesday’s volunteer event. He said at least 70% of the food will stay in the Chicago area.

(Credit: CBS)

“(Food insecurity) is actually a huge issue in lots of parts in the country,” Lopez said, who added that the proliferation of food deserts is a major problem.

“It’s not that there’s of lack of desire for a healthy product. It’s just that there’s no availability in that area.”

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The event continues through 7:00 Wednesday evening.