The House Intelligence Committee is about to begin an investigation into whether former National Security Adviser Michael Flynn improperly disclosed classified information about the Islamic State to his Turkish mistress.

The panel is looking into whether Flynn’s behavior endangered national security, including whether he misled Vice President Mike Pence and others about the nature of his conversation with the Russian ambassador.

The panel has already interviewed the former acting attorney general, a former acting deputy attorney general and others.

It also will examine whether Flynn committed any acts of “gross negligence,” which could lead to a potential felony charge.

“The panel is still assessing the evidence and its scope, but we are confident that it will reach a conclusion that the facts and circumstances do not warrant removal,” a spokesperson for the committee said in a statement.

The House Intelligence panel has begun an investigation of former National Intelligence Director Michael Flynn, who told the FBI he discussed US sanctions on Russia with the foreign minister of Turkey.

Flynn resigned from his post in March, shortly after the FBI revealed that he discussed sanctions with the Turkish foreign minister during the transition.

A spokesperson for Flynn’s defense, which has not yet responded to requests for comment, told CNN that he is not the subject of the probe.

Flynn, a retired general and former head of the Defense Intelligence Agency, was asked by President Donald Trump in February to brief the White House on the issue of Russian sanctions on Turkey.

The move prompted a wave of criticism, including from Democrats and members of Congress, and sparked calls for Flynn to resign.

Trump defended Flynn, saying in a March press conference that Flynn “did nothing wrong” and that he had no knowledge of the discussions with the diplomat.

The Trump administration also denied that Flynn had misled the administration about the content of his conversations with the ambassador.

In the statement issued to CNN, Flynn’s office said that he “understood that the conversation was not the topic of discussion at the time it took place.”

The White House did not immediately respond to a request for comment from CNN.

The Senate Intelligence Committee, which is investigating the matter, has not taken up the issue.

A spokesperson for committee Chair Richard Burr, a Republican from North Carolina, told the Associated Press that he will “continue to take up the investigation” into Flynn.