Secret Service agents who are part of the President’s protective detail were seen Saturday evening wearing masks in the Cabinet Room.

There are 11 Secret Service employees who currently have Covid-19, a congressional source confirmed to CNN.

Yahoo News, which first reported the figure basing it on a Department of Homeland Security document, also said 60 employees are self-quarantining. This is a small fraction of the 7,600 Secret Service employees who work for the agency in posts worldwide.

A Secret Service spokesperson refused to confirm how many currently have tested positive, would not say where those employees worked nor specify how many are agents.

“To protect the privacy of our employee’s health information and for operational security, the Secret Service is not releasing how many of its employees have tested positive for Covid-19, nor how many of its employees were, or currently are, quarantined,” the spokesperson said.