By Dylan Byers and Sara Murray

NEW YORK (CNNMoney) -- CNN and other news organizations were blocked Friday from an off-camera White House press briefing.

There was no immediate explanation from the White House.

The New York Times, the Los Angeles Times, and Politico were also excluded from the meeting, which is known as a gaggle and is less formal than the televised Q-and-A session in the White House briefing room.

The conservative media organizations Breitbart News, The Washington Times and One America News Network were allowed in.

The Associated Press and Time magazine boycotted the briefing because of how it was handled.

The White House Correspondents Association also protested the move.

"The WHCA board is protesting strongly against how today's gaggle is being handled by the White House," it said in a statement. "We encourage the organizations that were allowed in to share the material with others in the press corps who were not. The board will be discussing this further with White House staff."

In a separate statement, New York Times executive editor Dean Baquet wrote, "Nothing like this has ever happened at the White House in our long history of covering multiple administrations of different parties. We strongly protest the exclusion of The New York Times and the other news organizations. Free media access to a transparent government is obviously of crucial national interest."

Hours earlier, at the Conservative Political Action Conference outside Washington, President Trump mocked and disparaged the news media. He said that much of the press represents "the enemy of the people."

"They are the enemy of the people because they have no sources," Trump said. "They just make them up when there are none."

He also said reporters "shouldn't be allowed" to use unnamed sources.

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