U.S. Agriculture Department officials have launched an internal investigation into how the agency handled reports of serious problems tied to a deadly listeria outbreak at a Boar's Head deli meat plant in Virginia.

The deli meat company Boar's Head is being scrutinized by law enforcement officials over a deadly outbreak of listeria food poisoning.

A 10th person has died in an ongoing outbreak of listeria food poisoning tied to a now-closed Boar's Head deli meat plant in Virginia.

Boar’s Head is closing the Virginia plant tied to a deadly listeria outbreak.

Records show that a Boar's Head deli meat plant in Virginia tied to a deadly food poisoning outbreak repeatedly violated federal regulations.

The CDC released a statement on Wednesday once again reminding the public to avoid deli meats and products that have been recalled.

At least nine people have died after being infected with listeria from eating Boar's Head deli meats tied to a massive recall last month.

An 88-year-old Missouri woman was among more than 40 people sickened with listeria food poisoning tied to a deadly outbreak involving Boar's Head deli meats.