British health secretary Sajid Javid resigns citing loss of confidence in Boris Johnson

His departure, as well as that of Chancellor of the Exchequer Rishi Sunak, who followed suit shortly after, signal a potential shift in Boris Johnson's Conservative Party.

Both Javid and Sunak posted copies of their resignation letters to Twitter.

"It was a privilege to have been asked to come back into Government to serve as Secretary of State for Health & Social Care at such a critical time for our country," Javid began. "I have given every ounce of energy to this task, and am incredibly proud of what we have achieved."

He went on to highlight some of the accomplishments the government has made during his tenure, before explaining his reason for departing,

"Given the unprecedented scale of the challenges in health and social care, it has been my instinct to continue focusing on this important work," he wrote. "So it is with enormous regret that I must tell you that I can no longer, in good conscience, continue serving in this Government."

Javid then turned his focus to Boris Johnson himself and his role as Conservative Party leader, writing, "you have lost my confidence too."

He pointed out that despite the good things Johnson had done at the helm, "the country needs a strong and principled Conservative Party, and the Party is bigger than any one individual."

"I served you loyally and as a friend, but we all serve the country first," Javid concluded. "When made to choose between those loyalties there can only be one answer."

Sunak's letter echoed many of Javid's sentiments.

In June, Johnson narrowly survived a vote of confidence, and in the weeks since, a number of Conservatives members have expressed their desire to see the party move in a new direction.

As the BBC reports, the aforementioned resignations came shortly after Johnson apologized for appointing MP Chris Pincher to a government role, a decision widely criticized given the allegations made against Pincher.