The Chicago-based American Medical Association plans to ask a U.S. Senate committee to investigate Robert F. Kennedy Jr.’s decision to overhaul a key vaccine advisory group, the medical association said in an emergency resolution passed Tuesday.

The House of Delegates of the AMA, which is the nation’s premier doctors group, adopted the emergency resolution at its annual meeting in Chicago.

The adoption came just one day after Kennedy, who is the U.S. Department of Health and Human Services Secretary, announced that he had removed all 17 members of the Advisory Committee for Immunization Practices.

That advisory committee is tasked with making recommendations on the use of vaccines to the Centers for Disease Control and Prevention, which then sets U.S. adult and childhood immunization schedules. Kennedy said he planned to replace the 17 members with new members.

“Today we are prioritizing the restoration of public trust above any specific pro- or anti-vaccine agenda,” Kennedy said in a news release Monday. “The public must know that unbiased science — evaluated through a transparent process and insulated from conflicts of interest — guides the recommendations of our health agencies.”

It’s a move, however, that has met with sharp criticism, including from the American Medical Association. Kennedy has long been a vaccine skeptic, putting him at odds with doctors and scientists who tout vaccines as lifesaving.

The AMA’s emergency resolution also says that it will send an open letter to Kennedy asking him to reverse his recent changes to the committee. And the association will “identify and evaluate alternative evidence-based vaccine advisory structures,” according to the resolution.

On Monday, outgoing American Medical Association President Dr. Bruce Scott said in a statement that the advisory committee has long been a trusted source of science and data-driven guidance on vaccines.

“Today’s action to remove the 17 sitting members of ACIP undermines that trust and upends a transparent process that has saved countless lives,” Scott said.