The Secret Service has concluded its investigation into a bag of cocaine found in the West Wing without identifying any suspects.

Secret Service agents briefed House lawmakers and staff Thursday regarding the investigation after Republicans raised concerns about what the discovery, made on July 2 while President Joe Biden was at Camp David, meant for security at the White House.

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As he left the classified House briefing, Rep. Tim Burchett (R-TN) told reporters the Secret Service not identifying a suspect, despite analyzing visitor logs and security footage, "is the most ridiculous thing I've ever seen in my life." The Secret Service could not determine a time frame nor obtain fingerprints.

The bag of the drug was found near the West Executive entrance in a cubby where visitors leave their cell phones and other personal items while they are on campus. The White House was evacuated and the D.C. Fire Department called in case the powder was a dangerous substance.

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White House press secretary Karine Jean-Pierre told reporters last week there had been tours that Sunday and during the two days beforehand, describing the area as "highly traveled."

"We are not involved in this," Jean-Pierre said. "This is something that the Secret Service handles. It’s under their protocol."