The Defense Intelligence Agency warned former National Security Adviser and then-Army Gen. Michael Flynn in 2014 about accepting payments from foreign entities, according to new documents. The House Oversight Committee made the documents public Thursday, and also revealed that the Defense Department’s inspector general is investigating Flynn. “These documents raise grave questions about why General Flynn concealed the payments he received from foreign sources after he was warned explicitly by the Pentagon,” said Rep. Elijah Cummings, the committee’s top Democrat. On Tuesday, Cummings and Rep. Jason Chaffetz, the Republican chairman of the committee, suggested that Flynn broke the law by not disclosing foreign payments on his security-clearance application. The committee is still seeking documents relating to Flynn from the White House.