A House of Representatives panel on Friday inserted itself into the investigation of listeria-tainted cantaloupes, which have been linked to 25 deaths in the nation’s deadliest food-borne outbreak in a quarter of a century.

The House Energy and Commerce Committee requested a staff briefing from Jensen Farms, the Colorado farm that voluntarily recalled the contaminated fruit Sept. 14. The committee also asked Jensen to protect all documents and communications in the case.

“The committee has a long bipartisan history of conducting food safety oversight and is very concerned about these recent developments,” committee leaders wrote. “We intend to learn more from the Food and Drug Administration and the Centers for Disease Control, Jensen Farms, and others who may provide insight into the causes of this outbreak and the prevention of future outbreaks.”

The letter was signed by six members of the committee, including chairman Fred Upton (R-Mich.) and ranking member Henry A. Waxman (D-Beverly Hills).