Reporters from The New York Times, CNN, Politico, and several other outlets were reportedly blocked from attending a press gaggle with the White House press secretary, Sean Spicer, on Friday.
The White House Correspondents' Association protested the decision.
"The WHCA board is protesting strongly against how today's gaggle is being handled by the White House," the association 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."
The Associated Press and Time magazine boycotted Friday's briefing because the other outlets were not let in.
Both The New York Times and CNN had reported this week that the Trump administration had tried to seek help from the FBI in discrediting media reports about Trump aides' ties to Russia.
The Times' Washington bureau chief told Erik Wemple of The Washington Post that The Times' "most experienced" White House reporters had "never seen anything like this."
Spicer later told reporters who were allowed to attend the briefing that he thought the administration had "shown an abundance of accessibility." He also said that there was nothing out of the ordinary about the no-camera briefing, according to a White House pool report.
Also blocked were the Los Angeles Times, BuzzFeed, and most foreign press, according to the news outlet Axios.
Fox News anchor Bret Baier noted on Twitter: "Some at CNN & NYT stood w/FOX News when the Obama admin attacked us & tried 2 exclude us-a WH gaggle should be open to all credentialed orgs."
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