Lloyd Austin taking 'full responsibility' for keeping the White House in the dark

Defense Secretary Lloyd Austin is taking "full responsibility" for keeping the White House in the dark on hospitalization.

Defense Secretary Lloyd Austin is taking "full responsibility for [his] decisions" in having the Pentagon announce that he had been hospitalized for days following complications from what was described as a minor medical procedure.

A U.S. official confirmed to ABC News that the White House did not learn about Austin's hospitalization until Thursday night – three days after he was hospitalized on the night of New Year's Day for complications resulting from what was characterized as "a minor, elective procedure.”

The surprise disclosure of Austin's hospitalization had raised questions inside and outside of government about why it was disclosed so late into his medical treatments at Walter Reed National Military Medical Center in Bethesda, Maryland.

During part of his hospitalization, Austin was treated at Walter Reed's intensive care unit according to the official.

A U.S. Department of Defense spokesperson confirmed Saturday that Austin remains hospitalized but had resumed his duties on Friday night.