WASHINGTON — Teresa Manning – an antiabortion activist in charge of the Health and Human Services Department’s family planning programs – resigned her post Friday, according to a department spokeswoman.

Manning, who served as deputy assistant secretary for the Office of Population Affairs, has spent much of her career fighting abortion and has publicly questioned the efficacy of several popular contraception methods. Her job included overseeing the Title X program, which provides family-planning funding for about 4 million poor Americans or those without health insurance.

In an email Friday evening, HHS spokeswoman Caitlin Oakley confirmed Manning’s resignation but did not provide a reason for her abrupt departure.

“HHS would like to thank her for her service to this Administration and the American people,” Oakley said.

Manning was escorted from the building by security officials Friday. According to an HHS official, who spoke on the condition of anonymity, Manning already had turned in her badge and the escort allowed her to get back out through security.

Her resignation does not appear to represent a major ideological shift in the department, since Valerie Huber, a prominent abstinence education advocate, has been named acting deputy assistant secretary for the Office of Population Affairs. Huber has served as chief of staff in the Office of the Assistant Secretary of Health since June.

Manning, who was appointed by President Trump last May, formerly lobbied for the National Right to Life Committee and worked as a legislative analyst for the Family Research Council. She was one of several antiabortion activists and leaders Trump has picked for key positions at the agency.

Like many conservatives who oppose abortion rights, Manning has repeatedly objected to the use of RU-486, or mifepristone, which is often used with misoprostol to trigger an abortion during the early stages of a pregnancy, as well as the morning-after pill.