The U.S. Food and Drug Administration should beef up inspections after the agency cited a Brooklyn food distributor's warehouse in Pennsylvania, Sen. Charles Schumer said Sunday.

The warehouse in McKees Rocks, Pennsylvania, had rodent nests, carcasses, feces and urine, as well as birds flying throughout the facility, defecating on food products, during an October inspection, according to a Dec. 9 warning letter from the FDA to New Yung Wah Trading Company in Williamsburg. Last year, the FDA sent 90 warning letters to food facilities around the country, according to Schumer. He called for the FDA to treat any facility that got a warning letter as "high risk" and increase inspections; a database for retail food vendors to check on suppliers' violations; and hike penalties.

"Reports of the filthy conditions at some of these warehouses sound like a page straight out of Upton Sinclair's 'The Jungle,' " Schumer said in a statement.

The FDA and New Yung Wah could not be reached for comment.

Correction: An original version of this story erroneously cited the facility the FDA inspected. The error has been fixed.