A congressional oversight committee has requested an assessment from the National Archives, focusing on whether presidential records removed by former President Donald Trump remain unaccounted for and potentially in his possession.

The House Committee on Oversight and Reform sent a letter to the acting archivist Tuesday.

In the letter, the committee requested a full evaluation of Trump White House records after National Archives staff informed lawmakers last month that the agency is still uncertain whether all presidential records are in its custody.

The request comes weeks after the F.B.I. recovered “top secret” and even more sensitive documents from Trump’s Mar-a-Lago estate in Florida.