(CNN) - There are about to be two Secretary Kerrys in the Obama administration - and they're brothers.
Cameron Kerry, the general counsel for the Commerce Department, is poised to become acting secretary of commerce when the current acting secretary steps down later this month.
He is the brother of Secretary of State John Kerry.
Acting Secretary of Commerce Rebecca Blank made the announcement in a note to staff Monday, writing, "effective June 1, 2013, General Counsel Cameron Kerry has agreed to serve as Acting Secretary of Commerce. ...
"I have every confidence that they will provide effective and strong leadership for the Department for as long as they serve," she wrote in the note, which also named an acting deputy secretary.
It is uncertain for how long there would be two Kerrys in the Cabinet, as President Barack Obama earlier this month nominated Penny Pritzker to lead the Commerce Department.
One of the Kerrys' sisters, Peggy, works for the U.S. Mission to the United Nations.
News of the acting commerce secretary announcement was first reported by the Washington Post.